Bacampicillin Hydrochloride: White or practically white powder.Is hygroscopic.Soluble in methylene chloride and in water;freely soluble in alcohol and in chloroform;very slightly soluble in ether.

Bacitracin: White to pale buff powder,odorless or having a slight odor.Is hygroscopic.Its solutions deteriorate rapidly at room temperature.Is precipitated from its solutions and is inactivated by salts of many of the heavy metals.Freely soluble in water;soluble in alcohol,in methanol,and in glacial acetic acid,the solution in the organic solvents usually showing some insoluble residue;insoluble in acetone,in chloroform,and in ether.

Bacitracin Zinc: White to pale tan powder,odorless or having a slight odor.Is hygroscopic.Sparingly soluble in water.

Baclofen: White to off-white,crystalline powder.Is odorless or practically so.Slightly soluble in water;very slightly soluble in methanol;insoluble in chloroform.

Adhesive Bandage: The compress of Adhesive Bandage is substantially free from loose threads or ravelings.The adhesive strip may be perforated,and the back may be coated with a water-repellent film.

Gauze Bandage: One continuous piece,tightly rolled,in various widths and lengths and substantially free from loose threads and ravelings.

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

Barium Sulfate: Fine,white,odorless,tasteless,bulky powder,free from grittiness.Practically insoluble in water,in organic solvents,and in solutions of acids and of alkalies.

Barium Sulfate for Suspension: White or colored,bulky or granular powder.

BCG Vaccine: White to creamy white,dried mass,having the characteristic texture of material dried in the frozen state.

Beclomethasone Dipropionate: White to cream white,odorless powder.Very slightly soluble in water;very soluble in chloroform;freely soluble in acetone and in alcohol.

Belladonna Leaf: When moistened,its odor is slight,somewhat tobacco-like.Its taste is somewhat bitter and acrid.

Bendroflumethiazide: White to cream-colored,finely divided,crystalline powder.Is odorless,or has a slight odor.Melts at about 220.Practically insoluble in water;freely soluble in alcohol and in acetone.

Benoxinate Hydrochloride: White,or slightly off-white,crystals or crystalline powder.Is odorless,or has a slight characteristic odor,has a salty taste,and exhibits local anesthetic properties when placed upon the tongue.Its solutions are neutral to litmus,and it melts at about 158.Very soluble in water;freely soluble in chloroform and in alcohol;insoluble in ether.

Bentonite: Very fine,odorless,pale buff or cream-colored to grayish powder,free from grit.Has a slightly earthy taste.Is hygroscopic.Insoluble in water,but swells to approximately twelve times its volume when added to water;insoluble in,and does not swell in,organic solvents.NFcategory:Suspending and/or viscosity-increasing agent.

Purified Bentonite: Odorless,tasteless,fine (micronized)powder or small flakes that are creamy when viewed on their flat surfaces and tan to brown when viewed on their edges.Insoluble in water and in alcohol.Swells when added to water or glycerin.

Bentonite Magma: NFcategory:Suspending and/or viscosity-increasing agent.

Benzaldehyde: Colorless,strongly refractive liquid,having an odor resembling that of bitter almond oil,and having a burning,aromatic taste.Is affected by light.Slightly soluble in water.Miscible with alcohol,with ether,and with fixed and volatile oils.NFcategory:Flavors and perfumes.

Benzaldehyde Elixir,Compound: NFcategory:Flavored and/or sweetened vehicle.

Benzalkonium Chloride: White or yellowish-white,thick gel or gelatinous pieces.Usually has a mild,aromatic odor.Its aqueous solution has a bitter taste,foams strongly when shaken,and usually is slightly alkaline.Very soluble in water and in alcohol.Anhydrous form freely soluble in benzene,and slightly soluble in ether.NFcategory:Antimicrobial preservative;wetting and/or solubilizing agent.

Benzalkonium Chloride Solution: Clear liquid;colorless or slightly yellow unless a color has been added.Has an aromatic odor and a bitter taste.NFcategory:Antimicrobial preservative.

Benzethonium Chloride: White crystals,having a mild odor.Its solution (1in 100)is slightly alkaline to litmus.Soluble in water,in alcohol,and in chloroform;slightly soluble in ether.NFcategory:Antimicrobial preservative;wetting and/or solubilizing agent.

Benzethonium Chloride Solution: Odorless,clear liquid,slightly alkaline to litmus.

Benzethonium Chloride Tincture: Clear liquid,having the characteristic odor of acetone and of alcohol.

Benzocaine: Small,white crystals or white,crystalline powder.Is odorless,is stable in air,and exhibits local anesthetic properties when placed upon the tongue.Very slightly soluble in water;freely soluble in alcohol,in chloroform,and in ether;sparingly soluble in almond oil and in olive oil.Dissolves in dilute acids.

Benzoic Acid: White crystals,scales,or needles.Has a slight odor,usually suggesting benzaldehyde or benzoin.Somewhat volatile at moderately warm temperatures.Freely volatile in steam.Slightly soluble in water;freely soluble in alcohol,in chloroform,and in ether.NFcategory:Antimicrobial preservative.

Benzoin: Sumatra Benzoin has an aromatic and balsamic odor.When heated it does not emit a pinaceous odor.When Sumatra Benzoin is digested with boiling water,the odor suggests cinnamates or storax.Its taste is aromatic and slightly acrid.Siam Benzoin has an agreeable,balsamic,vanilla-like odor.Its taste is aromatic and slightly acrid.

Benzonatate: Clear,pale yellow,viscous liquid,having a faint,characteristic odor.Has a bitter taste,and exhibits local anesthetic properties when placed upon the tongue.Miscible with water in all proportions.Freely soluble in chloroform,in alcohol,and in benzene.

Hydrous Benzoyl Peroxide: White,granular powder,having a characteristic odor.Sparingly soluble in water and in alcohol;soluble in acetone,in chloroform,and in ether.

Benzoyl Peroxide Gel: Asoft,white gel,having a characteristic odor.

Benzoyl Peroxide Lotion: White,viscous,creamy lotion,having a characteristic odor.

Benztropine Mesylate: White,slightly hygroscopic,crystalline powder.Very soluble in water;freely soluble in alcohol;very slightly soluble in ether.

Benzyl Alcohol: Clear,colorless,oily liquid.Boils at about 206,without decomposition.Is neutral to litmus.Sparingly soluble in water;freely soluble in 50%alcohol.Miscible with alcohol,with ether,and with chloroform.NFcategory:Antimicrobial preservative.

Benzyl Benzoate: Clear,colorless,oily liquid having a slight aromatic odor and producing a sharp,burning sensation on the tongue.Practically insoluble in water and in glycerin.Miscible with alcohol,with ether,and with chloroform.NFcategory:Solvent.

Beta Carotene: Red or reddish-brown to violet-brown crystals or crystalline powder.Insoluble in water and in acids and in alkalies;soluble in carbon disulfide,in benzene,and in chloroform;sparingly soluble in ether,in solvent hexane,and in vegetable oils;practically insoluble in methanol and in alcohol.

Betadex: White,practically odorless,fine crystalline powder having a slightly sweet taste.Sparingly soluble in water.NFcategory:Sequestering agent.

Betamethasone: White to practically white,odorless,crystalline powder.Melts at about 240,with some decomposition.Insoluble in water;sparingly soluble in acetone,in alcohol,in dioxane,and in methanol;very slightly soluble in chloroform and in ether.

Betamethasone Acetate: White to creamy white,odorless powder.Sinters and resolidifies at about 165,and remelts at about 200or 220,with decomposition (see Melting Range or Temperature á741ñ).Practically insoluble in water;freely soluble in acetone;soluble in alcohol and in chloroform.

Betamethasone Benzoate: White to practically white,practically odorless powder.Melts at about 220,with decomposition.Insoluble in water;soluble in alcohol,in methanol,and in chloroform.

Betamethasone Dipropionate: White to cream-white,odorless powder.Insoluble in water;freely soluble in acetone and in chloroform;sparingly soluble in alcohol.

Betamethasone Sodium Phosphate: White to practically white,odorless powder.Is hygroscopic.Freely soluble in water and in methanol;practically insoluble in acetone and in chloroform.

Betamethasone Valerate: White to practically white,odorless powder.Melts at about 190,with decomposition.Practically insoluble in water;freely soluble in acetone and in chloroform;soluble in alcohol;slightly soluble in benzene and in ether.

Betaxolol Hydrochloride: White,crystalline powder.Freely soluble in water,in alcohol,in chloroform,and in methanol.

Bethanechol Chloride: Colorless or white crystals or white,crystalline powder,usually having a slight,amine-like odor.Is hygroscopic.Exhibits polymorphism,and of two crystalline forms observed,one melts at about 211and the other melts at about 219.Freely soluble in water and in alcohol;insoluble in chloroform and in ether.

Biotin: Practically white,crystalline powder.Very slightly soluble in water and in alcohol;insoluble in other common organic solvents.

Biperiden: White,practically odorless,crystalline powder.Practically insoluble in water;freely soluble in chloroform;sparingly soluble in alcohol.

Biperiden Hydrochloride: White,practically odorless,crystalline powder.Melts at about 275,with decomposition.Is optically inactive.Slightly soluble in water,in ether,in alcohol,and in chloroform;sparingly soluble in methanol.

Bisacodyl: White to off-white,crystalline powder,in which the number of particles having a longest diameter smaller than 50µm predominate.Practically insoluble in water;soluble in chloroform and in benzene;sparingly soluble in alcohol and in methanol;slightly soluble in ether.

Milk of Bismuth: Thick,white,opaque suspension that separates on standing.Is odorless and practically tasteless.Miscible with water and with alcohol.

Bismuth Citrate: White,amorphous or crystalline powder.Stable in air.Melts at about 300,with decomposition.Soluble in ammonia TSand in solutions of alkali citrates;insoluble in water and in alcohol.

Bismuth Subcarbonate: White or almost white powder.Practically insoluble in water,in alcohol,and in ether.Dissolves in dilute acids with effervescence.

Bismuth Subgallate: Amorphous,bright yellow powder.Is odorless and tasteless.Is stable in air,but is affected by light.Dissolves readily with decomposition in warm,moderately dilute hydrochloric,nitric,or sulfuric acid;readily dissolved by solutions of alkali hydroxides,forming a clear,yellow liquid that rapidly assumes a deep red color.Practically insoluble in water,in alcohol,in chloroform,and in ether;insoluble in very dilute mineral acids.

Bismuth Subnitrate: White,slightly hygroscopic powder.Practically insoluble in water and in alcohol;readily dissolved by hydrochloric acid or by nitric acid.

Bismuth Subsalicylate: Fine to off-white,microcrystalline,odorless,tasteless powder.Practically insoluble in water,in alcohol,and in ether.Reacts with alkalies and mineral acids.

Bisoprolol Fumarate: White,crystalline powder.Very soluble in water and in methanol;freely soluble in chloroform,in glacial acetic acid,and in alcohol;slightly soluble in acetone and in ethyl acetate.

Bleomycin Sulfate: Cream-colored,amorphous powder.Very soluble in water.

Anti-A Blood Grouping Serum: Liquid Serum is a clear or slightly opalescent fluid unless artificially colored blue.Dried Serum is light yellow to deep cream color,unless artificially colored as indicated for liquid Serum.The liquid Serum may develop slight turbidity on storage.The dried Serum may show slight turbidity upon reconstitution for use.

Anti-B Blood Grouping Serum: Liquid Serum is a clear or slightly opalescent fluid unless artificially colored yellow.Dried Serum is light yellow to deep cream color,unless artificially colored as indicated for liquid Serum.The liquid Serum may develop a slight turbidity on storage.The dried Serum may show slight turbidity upon reconstitution for use.

Blood Grouping Serums Anti-D,Anti-C,Anti-E,Anti-c,Anti-e: The liquid Serums are clear,slightly yellowish fluids,that may develop slight turbidity on storage.The dried Serums are light yellow to deep cream color.

Blood Group Specific Substances A,B,and AB: Clear solution that may have a slight odor because of the preservative.

Red Blood Cells: Dark red in color when packed.May show a slight creamy layer on the surface and a small supernatant layer of yellow or opalescent plasma.Also supplied in deep-frozen form with added cryophylactic substance to extend storage time.

Whole Blood: Deep red,opaque liquid from which the corpuscles readily settle upon standing for 24to 48hours,leaving a clear,yellowish or pinkish supernatant layer of plasma.

Boric Acid: Colorless,odorless scales of a somewhat pearly luster,or crystals,or white powder that is slightly unctuous to the touch.Is stable in air.Soluble in water and in alcohol;freely soluble in glycerin,in boiling water,and in boiling alcohol.NFcategory:Buffering agent.

Botulism Antitoxin: Transparent or slightly opalescent liquid,practically colorless,and practically odorless or having an odor because of the antimicrobial agent.

Bretylium Tosylate: White,crystalline powder.Is hygroscopic.Freely soluble in water,in methanol,and in alcohol;practically insoluble in ether,in ethyl acetate,and in hexane.

Brinzolamide: White or almost white powder.Insoluble in water;slightly soluble in alcohol and in methanol.

Bromocriptine Mesylate: White or slightly colored,fine crystalline powder,odorless or having a weak,characteristic odor.

Bromodiphenhydramine Hydrochloride: White to pale buff,crystalline powder,having no more than a faint odor.Freely soluble in water and in alcohol;soluble in isopropyl alcohol;insoluble in ether and in solvent hexane.

Brompheniramine Maleate: White,odorless,crystalline powder.Freely soluble in water;soluble in alcohol and in chloroform;slightly soluble in ether and in benzene.

Bumetanide: Practically white powder.Slightly soluble in water;soluble in alkaline solutions.

Bupivacaine Hydrochloride: White,odorless,crystalline powder.Melts at about 248,with decomposition.Freely soluble in water and in alcohol;slightly soluble in chloroform and in acetone.

Bupivacaine Hydrochloride Injection: Clear,colorless solution.

Bupivacaine Hydrochloride and Epinephrine Injection: Clear,colorless solution.

Bupropion Hydrochloride: White powder.Soluble in water,in 0.1Nhydrochloric acid,and in alcohol.

Busulfan: White,crystalline powder.Very slightly soluble in water;sparingly soluble in acetone;slightly soluble in alcohol.

Buspirone Hydrochloride: White crystalline powder.Very soluble in water;freely soluble in methanol and in methylene chloride;sparingly soluble in ethanol and in acetonitrile;very slightly soluble in ethyl acetate;practically insoluble in hexanes.

Butabarbital: White,odorless,crystalline powder.Very slightly soluble in water;soluble in alcohol,in chloroform,in ether,and in solutions of alkali hydroxides and carbonates.

Butabarbital Sodium: White powder,having a bitter taste.Freely soluble in water and in alcohol;practically insoluble in absolute ether.

Butalbital: White,crystalline,odorless powder,having a slightly bitter taste.Is stable in air.Its saturated solution is acid to litmus.Freely soluble in alcohol,in ether,and in chloroform;slightly soluble in cold water;soluble in boiling water,and in solutions of fixed alkalies and alkali carbonates.

Butamben: White,crystalline powder.Is odorless and tasteless.Very slightly soluble in water;soluble in dilute acids,in alcohol,in chloroform,in ether,and in fixed oils.Is slowly hydrolyzed when boiled with water.

Butane: Colorless,flammable gas (boiling temperature is about -0.5).One volume of water dissolves 0.15volume,and 1volume of alcohol dissolves 18volumes at 17and 770mm;1volume of ether or chloroform at 17dissolves 25or 30volumes,respectively.Vapor pressure at 21is about 1620mm of mercury (17psig).NFcategory:Aerosol propellant.

Butoconazole Nitrate: White to off-white,crystalline powder.Melts at about 160.Practically insoluble in water;very slightly soluble in ethyl acetate;slightly soluble in acetonitrile,in acetone,in dichloromethane,and in tetrahydrofuran;sparingly soluble in methanol.

Butorphanol Tartrate: White powder.Its solutions are slightly acidic.Melts between 217and 219,with decomposition.Sparingly soluble in water;slightly soluble in methanol;insoluble in alcohol,in chloroform,in ethyl acetate,in ethyl ether,and in hexane;soluble in dilute acids.

Butyl Alcohol: Clear,colorless,mobile liquid,having a characteristic,penetrating vinous odor.Soluble in water.Miscible with alcohol,with ether,and with many other organic solvents.NFcategory:Solvent.

Butylated Hydroxyanisole: White or slightly yellow,waxy solid,having a faint,characteristic odor.Insoluble in water;freely soluble in alcohol,in propylene glycol,in chloroform,and in ether.NFcategory:Antioxidant.

Butylated Hydroxytoluene: White,crystalline solid,having a faint,characteristic odor.Insoluble in water and in propylene glycol;freely soluble in alcohol,in chloroform,and in ether.NFcategory:Antioxidant.

Butylparaben: Small,colorless crystals or white powder.Very slightly soluble in water and in glycerin;freely soluble in acetone,in alcohol,in ether,and in propylene glycol.NFcategory:Antimicrobial preservative.