Saccharin: White crystals or white,crystalline powder.Is odorless or has a faint,aromatic odor.In dilute solution,it is intensely sweet.Its solutions are acid to litmus.Slightly soluble in water,in chloroform,and in ether;soluble in boiling water;sparingly soluble in alcohol.Is readily dissolved by dilute solutions of ammonia,by solutions of alkali hydroxides,and by solutions of alkali carbonates with the evolution of carbon dioxide.NFcategory:Sweetening agent.

Saccharin Calcium: White crystals or white,crystalline powder.Is odorless,or has a faint,aromatic odor,and has an intensely sweet taste even in dilute solutions.Its dilute solution is about 300times as sweet as sucrose.Freely soluble in water.NFcategory:Sweetening agent.

Saccharin Sodium: White crystals or white,crystalline powder.Is odorless,or has a faint,aromatic odor,and has an intensely sweet taste even in dilute solutions.Its dilute solution is about 300times as sweet as sucrose.When in powdered form,it usually contains about one-third the theoretical amount of water of hydration as a result of efflorescence.Freely soluble in water;sparingly soluble in alcohol.NFcategory:Sweetening agent.

Saccharin Sodium Oral Solution: Clear,colorless,odorless liquid,having a sweet taste.

Safflower Oil: Light yellow oil.Thickens and becomes rancid on prolonged exposure to air.Insoluble in water.Miscible with ether and with chloroform.NFcategory:Vehicle (oleaginous).

Salicylamide: White,practically odorless,crystalline powder.Slightly soluble in water and in chloroform;soluble in alcohol and in propylene glycol;freely soluble in ether and in solutions of alkalies.

Salicylic Acid: White crystals,usually in fine needles,or fluffy,white,crystalline powder.Has a sweetish,followed by an acrid,taste and is stable in air.The synthetic form is white and odorless.When prepared from natural methyl salicylate,it may have a slightly yellow or pink tint,and a faint,mint-like odor.Slightly soluble in water and in benzene;freely soluble in alcohol and in ether;soluble in boiling water;sparingly soluble in chloroform.

Schick Test Control: Transparent liquid.

Scopolamine Hydrobromide: Colorless or white crystals or white,granular powder.Melts at about 197,with decomposition.Is odorless,and slightly efflorescent in dry air.Freely soluble in water;soluble in alcohol;slightly soluble in chloroform;insoluble in ether.

Secobarbital: White,amorphous or crystalline,odorless powder,having a slightly bitter taste.Its saturated solution has a pHof about 5.6.Very slightly soluble in water;freely soluble in alcohol,in ether,and in solutions of fixed alkali hydroxides and carbonates;soluble in chloroform.

Secobarbital Sodium: White powder.Is odorless,has a bitter taste,and is hygroscopic.Its solutions decompose on standing,heat accelerating the decomposition.Very soluble in water;soluble in alcohol;practically insoluble in ether.

Selegiline Hydrochloride: White,odorless,crystalline powder.Freely soluble in water,in chloroform,and in methanol.

Selenium Sulfide: Reddish-brown to bright orange powder,having not more than a faint odor.Practically insoluble in water and in organic solvents.

Sennosides: Brownish powder.

Serine: White,odorless crystals,having a sweet taste.Soluble in water;practically insoluble in absolute alcohol and in ether.

Sesame Oil: Pale yellow,oily liquid.Is practically odorless,and has a bland taste.Slightly soluble in alcohol.Miscible with ether,with chloroform,with solvent hexane,and with carbon disulfide.NFcategory:Solvent,vehicle (oleaginous).

Shellac: Orange Shellac—Thin,hard,brittle,transparent,pale lemon-yellow to brownish orange flakes,having little or no odor;Bleached Shellac—Opaque,amorphous cream to yellow granules or coarse powder,having little or no odor.Insoluble in water;soluble (very slowly)in alcohol,85%to 95%(w/w);in ether,13%to 15%;in benzene,10%to 20%;in petroleum ether,2%to 6%;soluble in aqueous solutions of ethanolamines,alkalies,and borax;sparingly soluble in oil of turpentine.NFcategory:Coating agent.

Dental-Type Silica: Fine,white,hygroscopic,odorless,amorphous powder,in which the diameter of the average particles ranges between 0.5and 40µm.Insoluble in water,in alcohol,and in acid (except hydrofluoric acid);soluble in hot solutions of alkali hydroxides.NFcategory:Glidant and/or anticaking agent;suspending and/or viscosity-increasing agent.

Purified Siliceous Earth: Very fine,white,light gray,or pale buff mixture of amorphous powder and lesser amounts of crystalline polymorphs,including quartz and cristobalite.Is gritty,readily absorbs moisture,and retains about four times its weight of water without becoming fluid.Insoluble in water,in acids,and in dilute solutions of the alkali hydroxides.NFcategory:Filtering aid;sorbent.

Silicon Dioxide: Fine,white,hygroscopic,odorless,amorphous powder,in which the diameter of the average particles ranges between 2and 10µm.Insoluble in water,in alcohol,and in other organic solvents;soluble in hot solutions of alkali hydroxides.NFcategory:Desiccant;suspending and/or viscosity-increasing agent.

Colloidal Silicon Dioxide: Light,white,nongritty powder of extremely fine particle size (about 15nm).Insoluble in water and in acid (except hydrofluoric);soluble in hot solutions of alkali hydroxides.NFcategory:Glidant and/or anticaking agent;suspending and/or viscosity-increasing agent.

Silver Nitrate: Colorless or white crystals.The pHof its solutions is about 5.5.On exposure to light in the presence of organic matter,it becomes gray or grayish black.Very soluble in water and even more so in boiling water;sparingly soluble in alcohol;freely soluble in boiling alcohol;slightly soluble in ether.

Toughened Silver Nitrate: White,crystalline masses generally molded as pencils or cones.It breaks with a fibrous fracture.Its solutions are neutral to litmus.It becomes gray or grayish black upon exposure to light.Soluble in water to the extent of its nitrate content (there is always a residue of silver chloride).Partially soluble in alcohol;slightly soluble in ether.

Simethicone: Translucent,gray,viscous fluid.Insoluble in water and in alcohol.The liquid phase is soluble in chloroform,in ether,and in benzene,but silicon dioxide remains as a residue in these solvents.

Simvastatin: White to off-white powder.Practically insoluble in water;freely soluble in chloroform,in methanol,and in alcohol;sparingly soluble in propylene glycol;very slightly soluble in hexane.

Smallpox Vaccine: Liquid Vaccine is a turbid,whitish to greenish suspension,which may have a slight odor due to the antimicrobial agent.Dried Vaccine is a yellow to grayish pellet,which may or may not become fragmented when shaken.

Soda Lime: White or grayish-white granules.May have a color if an indicator has been added.NFcategory:Sorbent,carbon dioxide.

Sodium Acetate: Colorless,transparent crystals,or white,granular crystalline powder,or white flakes.Is odorless or has a faint acetous odor,and has a slightly bitter,saline taste.Is efflorescent in warm,dry air.Very soluble in water;soluble in alcohol.NFcategory:Buffering agent.

Sodium Alginate: Practically odorless and tasteless,coarse or fine powder,yellowish white in color.Soluble in water,forming a viscous,colloidal solution;insoluble in alcohol and in hydroalcoholic solutions in which the alcohol content is greater than about 30%by weight;insoluble in chloroform,in ether,and in acids when the pHof the resulting solution becomes lower than about 3.NFcategory:Suspending and/or viscosity-increasing agent.

Sodium Ascorbate: White or very faintly yellow crystals or crystalline powder.Is odorless or practically odorless.Is relatively stable in air.On exposure to light it gradually darkens.Freely soluble in water;very slightly soluble in alcohol;insoluble in chloroform and in ether.

Sodium Benzoate: White,odorless or practically odorless,granular or crystalline powder.Is stable in air.Freely soluble in water;sparingly soluble in alcohol and somewhat more soluble in 90%alcohol.NFcategory:Antimicrobial preservative.

Sodium Bicarbonate: White,crystalline powder.Is stable in dry air,but slowly decomposes in moist air.Its solutions,when freshly prepared with cold water,without shaking,are alkaline to litmus.The alkalinity increases as the solutions stand,as they are agitated,or as they are heated.Soluble in water;insoluble in alcohol.NFcategory:Alkalizing agent.

Sodium Bisulfite: NFcategory:Antioxidant.

Sodium Borate: Colorless,transparent crystals or white,crystalline powder.Is odorless.Its solutions are alkaline to phenolphthalein TS.As it effloresces in warm,dry air,the crystals are often coated with white powder.Soluble in water;freely soluble in boiling water and in glycerin;insoluble in alcohol.NFcategory:Alkalizing agent.

Sodium Butyrate: Clear,colorless,hygroscopic powder.Soluble in water and in methanol.Melting range is about 250to 253.

Sodium Carbonate: Colorless crystals,or white,crystalline powder or granules.Is stable in air under ordinary conditions.When exposed to dry air above 50,the hydrous salt effloresces and,at 100,becomes anhydrous.Freely soluble in water,but still more soluble in boiling water.NFcategory:Alkalizing agent.

Sodium Cetostearyl Sulfate: Awhite or pale yellow,amorphous or crystalline powder.Soluble in hot water giving an opalescent solution;partly soluble in alcohol;practically insoluble in cold water.

Sodium Chloride: Colorless,cubic crystals or white crystalline powder.Has a saline taste.Freely soluble in water;and slightly more soluble in boiling water;soluble in glycerin;slightly soluble in alcohol.NFcategory:Tonicity agent.

Sodium Chloride Inhalation Solution: Clear,colorless solution.

Bacteriostatic Sodium Chloride Injection: Clear,colorless solution,odorless or having the odor of the bacteriostatic substance.NFcategory:Vehicle (sterile).

Sodium Chloride Irrigation: Clear,colorless solution.

Sodium Citrate: Colorless crystals,or white,crystalline powder.Hydrous form freely soluble in water and very soluble in boiling water.Insoluble in alcohol.NFcategory:Buffering agent.

Sodium Citrate and Citric Acid Oral Solution: Clear solution having the color of any added preservative or flavoring agents.

Sodium Dehydroacetate: White or practically white,odorless powder,having a slight characteristic taste.Freely soluble in water,in propylene glycol,and in glycerin.NFcategory:Antimicrobial preservative.

Sodium Fluoride: White,odorless powder.Soluble in water;insoluble in alcohol.

Sodium Formaldehyde Sulfoxylate: White crystals or hard,white masses,having the characteristic odor of garlic.Freely soluble in water;slightly soluble in alcohol,in ether,in chloroform,and in benzene.NFcategory:Antioxidant.

Sodium Hydroxide: White,or practically white,fused masses,in small pellets,in flakes,or sticks,and in other forms.Is hard and brittle and shows a crystalline fracture.Exposed to the air,it rapidly absorbs carbon dioxide and moisture.Freely soluble in water and in alcohol.NFcategory:Alkalizing agent.

Sodium Hypochlorite Solution: Clear,pale greenish-yellow liquid,having the odor of chlorine.Is affected by light.

Sodium Iodide: Colorless,odorless crystals,or white,crystalline powder.Is deliquescent in moist air,and develops a brown tint upon decomposition.Very soluble in water;freely soluble in alcohol and in glycerin.

Sodium Lactate Solution: Clear,colorless or practically colorless,slightly viscous liquid,odorless or having a slight,not unpleasant odor.Miscible with water.NFcategory:Buffering agent.

Sodium Lauryl Sulfate: Small,white or light yellow crystals having a slight,characteristic odor.Freely soluble in water,forming an opalescent solution.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sodium Metabisulfite: White crystals or white to yellowish,crystalline powder,having the odor of sulfur dioxide.Freely soluble in water and in glycerin;slightly soluble in alcohol.NFcategory:Antioxidant.

Sodium Monofluorophosphate: White to slightly gray,odorless powder.Freely soluble in water.

Sodium Nitrite: White to slightly yellow,granular powder,or white or practically white,opaque,fused masses or sticks.Has a mild,saline taste and is deliquescent in air.Its solutions are alkaline to litmus.Freely soluble in water;sparingly soluble in alcohol.

Sodium Nitrite Injection: Clear,colorless liquid.

Sodium Nitroprusside: Reddish-brown,practically odorless,crystals or powder.Freely soluble in water;slightly soluble in alcohol;very slightly soluble in chloroform;insoluble in benzene.

Dibasic Sodium Phosphate (dried): White powder that readily absorbs moisture.Freely soluble in water;insoluble in alcohol.NFcategory:Buffering agent.

Dibasic Sodium Phosphate (heptahydrate): Colorless or white,granular or caked salt.Effloresces in warm,dry air.Its solutions are alkaline to phenolphthalein TS,a 0.1Msolution having a pHof about 9.Freely soluble in water;very slightly soluble in alcohol.NFcategory:Buffering agent.

Monobasic Sodium Phosphate: Colorless crystals or white,crystalline powder.Is odorless and is slightly deliquescent.Its solutions are acid to litmus and effervesce with sodium carbonate.Freely soluble in water;practically insoluble in alcohol.NFcategory:Buffering agent.

Tribasic Sodium Phosphate: The formula for a crystalline material is approximately 4(Na3PO4·12H2O)NaOH.It occurs as white,odorless crystals or granules or as a crystalline powder.It is freely soluble in water;insoluble in alcohol.The pHof a 1in 100solution is between 11.5and 12.0.

Sodium Polystyrene Sulfonate: Golden brown,fine powder.Is odorless and has a characteristic taste.Insoluble in water.

Sodium Propionate: Colorless,transparent crystals or granular,crystalline powder.Is odorless,or has a faint acetic-butyric odor and is deliquescent in moist air.Very soluble in water;soluble in alcohol.NFcategory:Antimicrobial preservative.

Sodium Salicylate: Amorphous or microcrystalline powder or scales.Is colorless,or has not more than a faint,pink tinge.Is odorless,or has a faint,characteristic odor,and is affected by light.Afreshly made solution (1in 10)is neutral or acid to litmus.Freely (and slowly)soluble in water and in glycerin;very soluble in boiling water and in boiling alcohol;slowly soluble in alcohol.

Sodium Starch Glycolate: White,tasteless,odorless,relatively free-flowing powder;available in several different viscosity grades.A2%(w/v)dispersion in cold water settles,on standing,in the form of a highly hydrated layer.NFcategory:Tablet disintegrant.

Sodium Stearate: Fine,white powder,soapy to the touch,usually having a slight,tallow-like odor.Is affected by light.Its solutions are alkaline to phenolphthalein TS.Slowly soluble in cold water and in cold alcohol;readily soluble in hot water and in hot alcohol.NFcategory:Emulsifying and/or solubilizing agent.

Sodium Stearyl Fumarate: Fine,white powder.Slightly soluble in methanol;practically insoluble in water.

Sodium Sulfate: Large,colorless,odorless,transparent crystals,or a granular powder.Effloresces rapidly in air,liquefies in its water of hydration at about 33,and loses all of its water of hydration at about 100.Freely soluble in water;soluble in glycerin;insoluble in alcohol.

Sodium Sulfite: Colorless crystals.Freely soluble in water;very slightly soluble in alcohol.NFcategory:Antioxidant.USP28

Sodium Tartrate: Transparent,colorless,odorless crystals.Freely soluble in water;insoluble in alcohol.NFcategory:Sequestering agent.USP28

Sodium Thiosulfate: Large,colorless crystals or coarse,crystalline powder.Is deliquescent in moist air and effloresces in dry air at temperatures exceeding 33.Its solutions are neutral or faintly alkaline to litmus.Very soluble in water;insoluble in alcohol.NFcategory:Antioxidant.

Sorbic Acid: Free-flowing,white,crystalline powder,having a characteristic odor.Slightly soluble in water;soluble in alcohol and in ether.NFcategory:Antimicrobial preservative.

Sorbitan Monolaurate: Yellow to amber-colored,oily liquid,having a bland,characteristic odor.Insoluble in water;soluble in mineral oil;slightly soluble in cottonseed oil and in ethyl acetate.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitan Monooleate: Viscous,yellow to amber-colored,oily liquid,having a bland,characteristic odor.Insoluble in water and in propylene glycol.Miscible with mineral and vegetable oils.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitan Monopalmitate: Cream-colored,waxy solid having a faint fatty odor.Insoluble in water;soluble in warm absolute alcohol;soluble,with haze,in warm peanut oil and in warm mineral oil.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitan Monostearate: Cream-colored to tan,hard,waxy solid,having a bland odor and taste.Insoluble in cold water and in acetone;dispersible in warm water;soluble,with haze,above 50in mineral oil and in ethyl acetate.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitan Sesquioleate: Viscous,yellow to amber-colored,oily liquid.Insoluble in water and in propylene glycol;soluble in alcohol,in isopropyl alcohol,in cottonseed oil,and in mineral oil.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitan Trioleate: Yellow to amber-colored,oily liquid.Insoluble in water,in ethylene glycol,and in propylene glycol;soluble in methyl alcohol,in alcohol,in isopropyl alcohol,in corn oil,in cottonseed oil,and in mineral oil.NFcategory:Emulsifying and/or solubilizing agent;wetting and/or solubilizing agent.

Sorbitol: D-Sorbitol occurs as white granules,powder,or crystalline masses.Is odorless,and has a sweet taste with a cold sensation.Very soluble in water;sparingly soluble in alcohol;and practically insoluble in ethyl ether.Is hygroscopic.NFcategory:Humectant;sweetening agent;tablet and/or capsule diluent.

Sorbitol Solution: Clear,colorless,syrupy liquid.Is odorless and has a sweet taste.It sometimes separates into crystalline masses.Miscible with water,with alcohol,with glycerin,and with propylene glycol.Is neutral to litmus.NFcategory:Sweetening agent;vehicle (flavored and/or sweetened).

Sotalol Hydrochloride: White to off-white powder.Freely soluble in water;soluble in alcohol;very slightly soluble in chloroform.

Soybean Oil: Clear,pale yellow,oily liquid having a characteristic odor and taste.Insoluble in water.Miscible with ether and with chloroform.NFcategory:Vehicle (oleaginous).

Hydrogenated Soybean Oil: Awhite mass or powder that melts to a clear,pale yellow liquid when heated.Freely soluble in methylene chloride,in hexane after heating,and in toluene;very slightly soluble in alcohol;practically insoluble in water.NFcategory:Emollient.

Spectinomycin Hydrochloride: White to pale-buff crystalline powder.Freely soluble in water;practically insoluble in alcohol,in chloroform,and in ether.

Spironolactone: Light cream-colored to light tan,crystalline powder.Has a faint to mild mercaptan-like odor;is stable in air.Practically insoluble in water;freely soluble in benzene and in chloroform;soluble in ethyl acetate and in alcohol;slightly soluble in methanol and in fixed oils.

Squalane: Colorless,practically odorless transparent oil.Insoluble in water;very slightly soluble in absolute alcohol;slightly soluble in acetone.Miscible with ether and with chloroform.NFcategory:Ointment base;vehicle (oleaginous).

Stannous Fluoride: White,crystalline powder,having a bitter,salty taste.Melts at about 213.Freely soluble in water;practically insoluble in alcohol,in ether,and in chloroform.

Stanozolol: Odorless,crystalline powder,occurring in two forms:as needles,melting at about 155,and as prisms,melting at about 235.Insoluble in water;soluble in dimethylformamide;sparingly soluble in alcohol and in chloroform;slightly soluble in ethyl acetate and in acetone;very slightly soluble in benzene.

Starch: Irregular,angular,white masses or fine powder.Is odorless,and has a slight,characteristic taste.Insoluble in cold water and in alcohol.NFcategory:Tablet and/or capsule diluent;tablet disintegrant.

Corn Starch: Irregular,angular,white masses or fine powder.Is odorless,and has a slight,characteristic taste.Insoluble in cold water and in alcohol.NFcategory:Tablet and/or capsule diluent;tablet disintegrant;tablet binder;suspending and/or viscosity-increasing agent.USP28

Potato Starch: Irregular,angular,white masses or fine powder.Is odorless,and has a slight,characteristic taste.Insoluble in cold water and in alcohol.NFcategory:Tablet and/or capsule diluent;tablet disintegrant;tablet binder;suspending and/or viscosity-increasing agent.USP28

Pregelatinized Starch: Moderately coarse to fine,white to off-white powder.Is odorless and has a slight,characteristic taste.Slightly soluble to soluble in cold water;insoluble in alcohol.NFcategory:Tablet binder;tablet and/or capsule diluent;tablet disintegrant.

Tapioca Starch: Irregular,angular,white to pale yellow masses or fine powder.Insoluble in cold water and in alcohol.NFcategory:Suspending and/or viscosity-increasing agent;tablet binder;tablet and/or capsule diluent;tablet disintegrant.

Wheat Starch: Irregular,angular,white masses or fine powder.Is odorless and has a slight,characteristic taste.Insoluble in cold water and in alcohol.NFcategory:Tablet and/or capsule diluent;tablet disintegrant;tablet binder;suspending and/or viscosity-increasing agent.USP28

Stearic Acid: Hard,white or faintly yellowish,somewhat glossy and crystalline solid,or white or yellowish-white powder.Its odor and taste are slight,suggesting tallow.Practically insoluble in water;freely soluble in chloroform and in ether;soluble in alcohol.NFcategory:Emulsifying and/or solubilizing agent;tablet and/or capsule lubricant.

Purified Stearic Acid: Hard,white or faintly yellowish,somewhat glossy and crystalline solid,or white or yellowish-white powder.Its odor and taste are slight,suggesting tallow.Practically insoluble in water;freely soluble in chloroform and in ether;soluble in alcohol.

Stearyl Alcohol: Unctuous,white flakes or granules.Has a faint,characteristic odor and a bland,mild taste.Insoluble in water;soluble in alcohol and in ether.NFcategory:Stiffening agent.

Storax: Semiliquid,grayish to grayish-brown,sticky,opaque mass depositing on standing a heavy dark brown layer (Levant Storax);or semisolid,sometimes a solid mass,softened by gently warming (American Storax).Is transparent in thin layers,has a characteristic odor and taste,and is more dense than water.Insoluble in water;soluble,usually incompletely,in an equal weight of warm alcohol;soluble in acetone,in carbon disulfide,and in ether,some insoluble residue usually remaining.

Streptomycin Sulfate: White or practically white powder.Is odorless or has not more than a faint odor.Is hygroscopic,but is stable in air and on exposure to light.Its solutions are acid to practically neutral to litmus.Freely soluble in water;very slightly soluble in alcohol;practically insoluble in chloroform.

Streptomycin Sulfate Injection: Clear,colorless to yellow,viscous liquid.Is odorless or has a slight odor.

Strontium Chloride: Colorless,odorless crystals or white granules.Effloresces in air;deliquesces in moist air.Very soluble in water;soluble in alcohol.

Succinic Acid: White,odorless crystals.Soluble in water,in alcohol,and in glycerin;freely soluble in boiling water.NFcategory:Buffereing agent.USP28

Succinylcholine Chloride: White,odorless,crystalline powder.Its solutions have a pHof about 4.The dihydrate form melts at about 160;the anhydrous form melts at about 190,and is hygroscopic.Freely soluble in water;slightly soluble in alcohol and in chloroform;practically insoluble in ether.

Sucralose: White to off-white,crystalline powder.Freely soluble in water,in methanol,and in alcohol;slightly soluble in ethyl acetate.NFcategory:Sweetening agent.

Sucrose: White,crystalline powder or lustrous,dry,colorless or white crystals.Very soluble in water;slightly soluble in alcohol;practically insoluble in dehydrated alcohol.

Sucrose Octaacetate: White,practically odorless powder,having an intensely bitter taste.Is hygroscopic.Very slightly soluble in water;very soluble in methanol and in chloroform;soluble in alcohol and in ether.NFcategory:Alcohol denaturant.

Sufentanil Citrate: White powder.Soluble in water;freely soluble in methanol;sparingly soluble in acetone,in alcohol,and in chloroform.Melts between 133and 140.

Compressible Sugar: Practically white,crystalline,odorless powder,having a sweet taste.Is stable in air.The sucrose portion of Compressible Sugar is very soluble in water.NFcategory:Sweetening agent;tablet and/or capsule diluent.

Confectioner's Sugar: Fine,white,odorless powder,having a sweet taste.Is stable in air.The sucrose portion of Confectioner's Sugar is soluble in cold water.Confectioner's Sugar is freely soluble in boiling water.NFcategory:Sweetening agent;tablet and/or capsule diluent.

Sugar Spheres: Hard,brittle,free-flowing,spherical masses ranging generally in size from 10-to 60-mesh.Usually white,but may be colored.Solubility in water varies according to the sugar-to-starch ratio.

Sulbactam Sodium: White to off-white,crystalline powder.Freely soluble in water and in dilute acid;sparingly soluble in acetone,in ethyl acetate,and in chloroform.

Sulconazole Nitrate: White to off-white,crystalline powder.Melts at about 130,with decomposition.Very slightly soluble in water,in toluene,and in dioxane;slightly soluble in alcohol,in chloroform,in acetone,and in methylene chloride;sparingly soluble in methanol;freely soluble in pyridine.

Sulfabenzamide: Fine,white,practically odorless powder.Insoluble in water and in ether;soluble in alcohol,in acetone,and in sodium hydroxide TS.

Sulfacetamide: White,crystalline powder,odorless and having a characteristic sour taste.Its aqueous solutions are sensitive to light,and are unstable when acidic or strongly alkaline.Slightly soluble in water and in ether;freely soluble in dilute mineral acids and in solutions of potassium and sodium hydroxides;soluble in alcohol;very slightly soluble in chloroform;practically insoluble in benzene.

Sulfacetamide Sodium: White,crystalline powder.Is odorless and has a bitter taste.Freely soluble in water;sparingly soluble in alcohol;practically insoluble in chloroform and in ether.

Sulfadiazine: White or slightly yellow powder.Is odorless or nearly odorless and is stable in air,but slowly darkens on exposure to light.Practically insoluble in water;freely soluble in dilute mineral acids,in solutions of potassium and sodium hydroxides,and in ammonia TS;sparingly soluble in alcohol and in acetone;slightly soluble in human serum at 37.

Silver Sulfadiazine: White to creamy-white,crystalline powder,odorless to having a slight odor.Is stable in air,but turns yellow on exposure to light.Slightly soluble in acetone;practically insoluble in alcohol,in chloroform,and in ether;freely soluble in 30%ammonium solution;decomposes in moderately strong mineral acids.

Sulfadiazine Sodium: White powder.On prolonged exposure to humid air it absorbs carbon dioxide with the liberation of sulfadiazine and becomes incompletely soluble in water.Its solutions are alkaline to phenolphthalein.Is affected by light.Freely soluble in water;slightly soluble in alcohol.

Sulfadimethoxine: Practically white,crystalline powder.Soluble in 2Nsodium hydroxide;sparingly soluble in 2Nhydrochloric acid;slightly soluble in alcohol,in ether,in chloroform,and in hexane;practically insoluble in water.

Sulfamethazine: White to yellowish-white powder,which may darken on exposure to light.Has a slightly bitter taste and is practically odorless.Very slightly soluble in water and in ether;soluble in acetone;slightly soluble in alcohol.

Sulfamethizole: White crystals or powder,having a slightly bitter taste.Is practically odorless,and has no odor of hydrogen sulfide.Very slightly soluble in water,in chloroform,and in ether;freely soluble in solutions of ammonium,potassium,and sodium hydroxides;soluble in dilute mineral acids and in acetone;sparingly soluble in alcohol;practically insoluble in benzene.

Sulfamethoxazole: White to off-white,practically odorless,crystalline powder.Practically insoluble in water,in ether,and in chloroform;freely soluble in acetone and in dilute solutions of sodium hydroxide;sparingly soluble in alcohol.

Sulfapyridine: White or faintly yellowish-white crystals,granules,or powder.Is odorless or practically odorless,and is stable in air,but slowly darkens on exposure to light.Very slightly soluble in water;freely soluble in dilute mineral acids and in solutions of potassium and sodium hydroxides;sparingly soluble in acetone;slightly soluble in alcohol.

Sulfasalazine: Bright yellow or brownish-yellow,odorless,fine powder.Melts at about 255,with decomposition.Very slightly soluble in alcohol;practically insoluble in water,in ether,in chloroform,and in benzene;soluble in aqueous solutions of alkali hydroxides.

Sulfathiazole: Fine,white or faintly yellowish-white,practically odorless powder.Very slightly soluble in water;soluble in acetone,in dilute mineral acids,in solutions of alkali hydroxides,and in 6Nammonium hydroxide;slightly soluble in alcohol.

Sulfinpyrazone: White to off-white powder.Practically insoluble in water and in solvent hexane;soluble in alcohol and in acetone;sparingly soluble in dilute alkali.

Sulfisoxazole: White to slightly yellowish,odorless,crystalline powder.Very slightly soluble in water;soluble in boiling alcohol and in 3Nhydrochloric acid.

Sulfisoxazole Acetyl: White or slightly yellow,crystalline powder.Practically insoluble in water;sparingly soluble in chloroform;slightly soluble in alcohol.

Precipitated Sulfur: Very fine,pale yellow,amorphous or microcrystalline powder.Is odorless and tasteless.Practically insoluble in water;very soluble in carbon disulfide;slightly soluble in olive oil;very slightly soluble in alcohol.

Sublimed Sulfur: Fine,yellow,crystalline powder,having a faint odor and taste.Practically insoluble in water;sparingly soluble in olive oil;practically insoluble in alcohol.

Sulfur Dioxide: Colorless,nonflammable gas,possessing a strong,suffocating odor characteristic of burning sulfur.Under pressure,it condenses readily to a colorless liquid that boils at -10and has a density of approximately 1.5.At 20and at standard pressure,approximately 36volumes dissolve in 1volume of water and approximately 114volumes dissolve in 1volume of alcohol.Soluble also in ether and in chloroform.NFcategory:Antioxidant.

Sulfuric Acid: Clear,colorless,oily liquid.Miscible with water and with alcohol with the generation of much heat.Is very caustic and corrosive.Specific gravity is about 1.84.NFcategory:Acidifying agent.

Sulindac: Yellow,crystalline powder,which is odorless or practically so.Slightly soluble in methanol,in alcohol,in acetone,and in chloroform;very slightly soluble in isopropanol and in ethyl acetate;practically insoluble in hexane and in water.

Sulisobenzone: Light tan powder,with a melting point of about 145.Freely soluble in methanol,in alcohol,and in water;sparingly soluble in ethyl acetate.

Sumatriptan: White to pale yellow powder.Very slightly soluble in water.USP28

Suprofen: White to off-white powder,odorless to having a slight odor.Sparingly soluble in water.

Syrup: NFcategory:Sweetening agent;tablet binder;flavored and/or sweetened vehicle.