Mafenide Acetate: White to pale yellow,crystalline powder.Freely soluble in water.

Magaldrate: White,odorless,crystalline powder.Insoluble in water and in alcohol;soluble in dilute solutions of mineral acids.

Milk of Magnesia: White,opaque,more or less viscous suspension from which varying proportions of water usually separate on standing.pHis about 10.

Magnesium Aluminometasilicate White powder or granules having an amorphous structure.Partially soluble in acids and in alkalies;practically insoluble in water and in alcohol.

Magnesium Aluminosilicate: White powder or granules having an amorphous structure.Partially soluble in acids and in alkalies;practically insoluble in water and in alcohol.

Magnesium Aluminum Silicate: Odorless,tasteless,fine (micronized)powder,small cream to tan granules,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.NFcategory:Suspending and/or viscosity-increasing agent.

Magnesium Carbonate: Light,white,friable masses or bulky,white powder.Is odorless,and is stable in air.Practically insoluble in water to which,however,it imparts a slightly alkaline reaction;insoluble in alcohol,but is dissolved by dilute acids with effervescence.

Magnesium Chloride: Colorless,odorless,deliquescent flakes or crystals,which lose water when heated to 100and lose hydrochloric acid when heated to 110.Very soluble in water;freely soluble in alcohol.

Magnesium Citrate Oral Solution: Colorless to slightly yellow,clear,effervescent liquid,having a sweet,acidulous taste and a lemon flavor.

Magnesium Gluconate: Colorless crystals or white powder or granules.Is odorless and tasteless.Freely soluble in water;very slightly soluble in alcohol;insoluble in ether.

Magnesium Hydroxide: Bulky,white powder.Practically insoluble in water and in alcohol;soluble in dilute acids.

Magnesium Oxide: Very bulky,white powder known as Light Magnesium Oxide or relatively dense,white powder known as Heavy Magnesium Oxide.Five g of Light Magnesium Oxide occupies a volume of approximately 40to 50mL,while 5g of Heavy Magnesium Oxide occupies a volume of approximately 10to 20mL.Practically insoluble in water;soluble in dilute acids;insoluble in alcohol.

Magnesium Phosphate: White,odorless,tasteless powder.Almost insoluble in water;readily soluble in diluted mineral acids.

Magnesium Salicylate: White,odorless,efflorescent,crystalline powder.Freely soluble in methanol;soluble in alcohol and in water;slightly soluble in ether.

Magnesium Silicate: Fine,white,odorless,tasteless powder,free from grittiness.Insoluble in water and in alcohol.Is readily decomposed by mineral acids.NFcategory:Glidant and/or anticaking agent.

Magnesium Stearate: Very fine,light,white powder,slippery to touch.Insoluble in water,in alcohol,and in ether.NFcategory:Tablet and/or capsule lubricant.

Magnesium Sulfate: Small,colorless crystals,usually needle-like,with a cooling,saline,bitter taste.It effloresces in warm,dry air.Freely soluble in water;freely (and slowly)soluble in glycerin;very soluble in boiling water;sparingly soluble in alcohol.

Magnesium Trisilicate: Fine,white,odorless,tasteless powder,free from grittiness.Insoluble in water and in alcohol.Is readily decomposed by mineral acids.

Malathion: Yellow to deep brown liquid,having a characteristic odor.Congeals at about 2.9.Slightly soluble in water.Miscible with alcohols,with esters,with ketones,with ethers,with aromatic and alkylated aromatic hydrocarbons,and with vegetable oils.

Maleic Acid: White,crystalline powder.Freely soluble in water and in alcohol;sparingly soluble in ether.USP28

Malic Acid: White or practically white,crystalline powder or granules,having a strongly acid taste.Melts at about 130.Very soluble in water;freely soluble in alcohol.NFcategory:Acidifying agent.

Maltodextrin: White,hygroscopic powder or granules.Freely soluble or readily dispersible in water;slightly soluble to insoluble in anhydrous alcohol.NFcategory:Tablet and/or capsule diluent;coating agent;tablet binder;viscosity-increasing agent.

Maltose: Maltose occurs in either the anhydrous state or as a monohydrate.It is a white,crystalline powder,odorless,and has a sweet taste.Freely soluble in water;slightly soluble in methanol;very soluble in ethanol;and practically insoluble in ether.

Mangafodipir Trisodium: Pale yellow crystals or cystalline powder.Freely soluble in water;sparingly soluble in methanol;slightly soluble in chloroform;very slightly soluble in alcohol and in acetone.

Manganese Chloride: Large,irregular,pink,odorless,translucent crystals.Soluble in water and in alcohol;insoluble in ether.

Manganese Chloride for Oral Solution: Off-white to tan-colored powder with a strawberry odor.Soluble in water.

Manganese Sulfate: Pale red,slightly efflorescent crystals,or purple,odorless powder.Soluble in water;insoluble in alcohol.

Mannitol: White,crystalline powder or free-flowing granules.Is odorless and has a sweet taste.Freely soluble in water;soluble in alkaline solutions;slightly soluble in pyridine;very slightly soluble in alcohol;practically insoluble in ether.NFcategory:Sweetening agent;tablet and/or capsule diluent;tonicity agent;bulking agent for freeze-drying.

Maprotiline Hydrochloride: Fine,white to off-white,crystalline powder.Is practically odorless.Freely soluble in methanol and in chloroform;slightly soluble in water;practically insoluble in isooctane.

Mazindol: White to off-white,crystalline powder,having not more than a faint odor.Insoluble in water;slightly soluble in methanol and in chloroform.

Measles Virus Vaccine Live: Solid having the characteristic appearance of substances dried from the frozen state.Undergoes loss of potency on exposure to sunlight.The Vaccine is to be constituted with a suitable diluent just prior to use.

Measles,Mumps,and Rubella Virus Vaccine Live: Solid having the characteristic appearance of substances dried from the frozen state.The Vaccine is to be constituted with a suitable diluent just prior to use.Constituted vaccine undergoes loss of potency on exposure to sunlight.

Measles and Rubella Virus Vaccine Live: Solid having the characteristic appearance of substances dried from the frozen state.The Vaccine is to be constituted with a suitable diluent just prior to use.Constituted vaccine undergoes loss of potency on exposure to sunlight.

Mebendazole: White to slightly yellow powder.Is almost odorless.Melts at about 290.Practically insoluble in water,in dilute solutions of mineral acids,in alcohol,in ether,and in chloroform;freely soluble in formic acid.

Mechlorethamine Hydrochloride: White,crystalline powder.Is hygroscopic.

Meclizine Hydrochloride: White or slightly yellowish,crystalline powder.Has a slight odor and is tasteless.Practically insoluble in water and in ether;freely soluble in chloroform,in pyridine,and in acid-alcohol-water mixtures;slightly soluble in dilute acids and in alcohol.

Meclofenamate Sodium: Awhite to creamy white,odorless to almost odorless,crystalline powder.Soluble in methanol;slightly soluble in chloroform;practically insoluble in ether.Freely soluble in water,the solution sometimes being somewhat turbid due to partial hydrolysis and absorption of carbon dioxide;the solution is clear above pH11.5.

Medroxyprogesterone Acetate: White to off-white,odorless,crystalline powder.Melts at about 205.Is stable in air.Insoluble in water;freely soluble in chloroform;soluble in acetone and in dioxane;sparingly soluble in alcohol and in methanol;slightly soluble in ether.

Mefenamic Acid: White to off-white,crystalline powder.Melts at about 230,with decomposition.Soluble in solutions of alkali hydroxides;sparingly soluble in chloroform;slightly soluble in alcohol and in methanol;practically insoluble in water.

Megestrol Acetate: White to creamy white,tasteless and essentially odorless,crystalline powder.Insoluble in water;sparingly soluble in alcohol;slightly soluble in ether and in fixed oils;soluble in acetone;very soluble in chloroform.Is unstable under aqueous conditions at pH7or above.

Meglumine: White to faintly yellowish-white,odorless crystals or powder.Freely soluble in water;sparingly soluble in alcohol.

Melphalan: Off-white to buff powder,having a faint odor.Melts at about 180,with decomposition.Practically insoluble in water,in chloroform,and in ether;soluble in dilute mineral acids;slightly soluble in alcohol and in methanol.

Menadiol Sodium Diphosphate: White to pink powder,having a characteristic odor.Is hygroscopic.Its solutions are neutral or slightly alkaline to litmus,having a pHof about 8.Very soluble in water;insoluble in alcohol.

Menadione: Bright yellow,crystalline,practically odorless powder.Is affected by sunlight.Practically insoluble in water;soluble in vegetable oils;sparingly soluble in chloroform and in alcohol.

Menthol: Colorless,hexagonal crystals,usually needle-like,or in fused masses,or crystalline powder.Has a pleasant,peppermint-like odor.Slightly soluble in water;very soluble in alcohol,in chloroform,in ether,and in solvent hexane;freely soluble in glacial acetic acid,in mineral oil,and in fixed and volatile oils.NFcategory:Flavors and perfumes.

Meperidine Hydrochloride: Fine,white,crystalline,odorless powder.The pHof a solution (1in 20)is about 5.Very soluble in water;soluble in alcohol;sparingly soluble in ether.

Mephobarbital: White,odorless,crystalline powder,having a bitter taste.Its saturated solution is acid to litmus.Slightly soluble in water,in alcohol,and in ether;soluble in chloroform and in solutions of fixed alkali hydroxides and carbonates.

Mepivacaine Hydrochloride: White,odorless,crystalline solid.The pHof a solution (1in 50)is about 4.5.Freely soluble in water and in methanol;very slightly soluble in chloroform;practically insoluble in ether.

Meprobamate: White powder,having a characteristic odor and a bitter taste.Slightly soluble in water;freely soluble in acetone and in alcohol;practically insoluble or insoluble in ether.

Mercaptopurine: Yellow,odorless or practically odorless,crystalline powder.Melts at a temperature exceeding 308,with decomposition.Insoluble in water,in acetone,and in ether;soluble in hot alcohol and in dilute alkali solutions;slightly soluble in 2Nsulfuric acid.

Ammoniated Mercury: White,pulverulent pieces or white,amorphous powder.Is odorless,and is stable in air,but darkens on exposure to light.Insoluble in water,and in alcohol;readily soluble in warm hydrochloric,nitric,and acetic acids.

Meropenem: Colorless to white crystals.Soluble in dimethylformamide and in 5%monobasic potassium phosphate solution;sparingly soluble in water;very slightly soluble in alcohol;practically insoluble in acetone and in ether.

Mesalamine: Light tan to pink colored,needle-shaped crystals.Color may darken on exposure to air.Is odorless or may have a slight characteristic odor.Slightly soluble in water;very slightly soluble in methanol,in dehydrated alcohol,and in acetone;practically insoluble in n-butyl alcohol,in chloroform,in ether,in ethyl acetate,in n-hexane,in methylene chloride,and in n-propyl alcohol;soluble in dilute hydrochloric acid and in dilute alkali hydroxides.

Mesoridazine Besylate: White to pale yellowish powder,having not more than a faint odor.Melts at about 178,with decomposition.Freely soluble in water,in chloroform,and in methanol.

Mestranol: White to creamy white,odorless,crystalline powder.Insoluble in water;freely soluble in chloroform;soluble in dioxane;sparingly soluble in dehydrated alcohol;slightly soluble in methanol.

Metaproterenol Sulfate: White to off-white,crystalline powder.Freely soluble in water.

Metformin Hydrochloride: White,crystalline powder.Freely soluble in water;slightly soluble in alcohol;practically insoluble in acetone and in methylene chloride.USP28

Methacholine Chloride: Colorless or white crystals,or white,crystalline powder.Is odorless or has a slight odor,and is very hygroscopic.Its solutions are neutral to litmus.Very soluble in water;freely soluble in alcohol and in chloroform.

Methacrylic Acid Copolymer: White powder having a faint,characteristic odor.The polymer is insoluble in water,in diluted acids,in simulated gastric fluid TS,and in buffer solutions of up to pH5;soluble in diluted alkali,in simulated intestinal fluid TS,and in buffer solutions of pH7and above.The solubility between pH5.5and pH7depends on the content of methacrylic acid units in the copolymer.The polymer is soluble to freely soluble in methanol,in alcohol,in isopropyl alcohol,and in acetone,each of which contains not less than 3%of water.

Methacrylic Acid Copolymer Dispersion: Milky-white liquid of low viscosity.It is miscible with water in any proportion;the milky-white appearance is retained.Aclear or slightly opalescent,viscous solution is obtained on mixing one part with five parts of acetone,alcohol,or isopropyl alcohol;the polymer substance is first precipitated,but then dissolves in the excess organic solvent.Aclear or slightly opalescent,viscous solution is obtained on mixing one part with two parts of 1Nsodium hydroxide.

Methacycline Hydrochloride: Yellow to dark yellow,crystalline powder.Soluble in water.

Methadone Hydrochloride: Colorless crystals or white,crystalline,odorless powder.Soluble in water;freely soluble in alcohol and in chloroform;practically insoluble in ether and in glycerin.

Methadone Hydrochloride Oral Concentrate: Clear to slightly hazy,syrupy liquid.

Methamphetamine Hydrochloride: White crystals or white,crystalline powder.Is odorless or practically so.Its solutions have a pHof about 6.Freely soluble in water,in alcohol,and in chloroform;very slightly soluble in absolute ether.

Methazolamide: White or faintly yellow,crystalline powder having a slight odor.Melts at about 213.Very slightly soluble in water and in alcohol;soluble in dimethylformamide;slightly soluble in acetone.

Methdilazine Hydrochloride: Light tan,crystalline powder,having a slight,characteristic odor.Freely soluble in water,in alcohol,and in chloroform.

Methenamine: Colorless,lustrous crystals or white,crystalline powder.Is practically odorless.When brought into contact with fire,it readily ignites,burning with a smokeless flame.It sublimes at about 260,without melting.Its solutions are alkaline to litmus.Freely soluble in water;soluble in alcohol and in chloroform.

Methenamine Mandelate: White,crystalline powder.Has a sour taste and is practically odorless.Its solutions have a pHof about 4.Melts at about 127,with decomposition.Very soluble in water;soluble in alcohol and in chloroform;slightly soluble in ether.

Methimazole: White to pale buff,crystalline powder,having a faint,characteristic odor.Its solutions are practically neutral to litmus.Freely soluble in water,in alcohol,and in chloroform;slightly soluble in ether.

Methionine: White crystals,having a characteristic odor and taste.Soluble in water,in warm dilute alcohol,and in dilute mineral acids;insoluble in ether,in absolute alcohol,in benzene,and in acetone (L-form).

Methocarbamol: White powder,odorless,or having a slight characteristic odor.Melts at about 94,or,if previously ground to a fine powder,melts at about 90.Sparingly soluble in water and in chloroform;soluble in alcohol only with heating;insoluble in benzene and in n-hexane.

Methohexital: White to faintly yellowish-white,crystalline,odorless powder.Very slightly soluble in water;slightly soluble in alcohol,in chloroform,and in dilute alkalies.

Methohexital Sodium for Injection: White to off-white,hygroscopic powder.Is essentially odorless.

Methotrexate: Orange-brown,or yellow,crystalline powder.Practically insoluble in water,in alcohol,in chloroform,and in ether;freely soluble in dilute solutions of alkali hydroxides and carbonates;slightly soluble in 6Nhydrochloric acid.

Methotrimeprazine: Fine,white,practically odorless,crystalline powder.Melts at about 126.Practically insoluble in water;freely soluble in chloroform and in ether;sparingly soluble in methanol.Is sparingly soluble in alcohol at 25,but is freely soluble in boiling alcohol.

Methoxsalen: White to cream-colored,fluffy,needle-like crystals.Is odorless.Practically insoluble in water;freely soluble in chloroform;soluble in boiling alcohol,in acetone,in acetic acid,in propylene glycol,and in benzene;sparingly soluble in boiling water and in ether.

Methoxsalen Topical Solution: Clear,colorless liquid.

Methoxyflurane: Clear,practically colorless,mobile liquid,having a characteristic odor.Boils at about 105.Miscible with alcohol,with acetone,with chloroform,with ether,and with fixed oils.

Methsuximide: White to grayish white,crystalline powder.Is odorless,or has not more than a slight odor.Slightly soluble in hot water;very soluble in chloroform;freely soluble in alcohol and in ether.

Methyclothiazide: White or practically white,crystalline powder.Is odorless,or has a slight odor.Very slightly soluble in water,in chloroform,and in benzene;freely soluble in acetone and in pyridine;sparingly soluble in methanol;slightly soluble in alcohol.

Methyl Alcohol: Clear,colorless liquid,having a characteristic odor.Is flammable.Miscible with water,with alcohol,with ether,with benzene,and with most other organic solvents.NFcategory:Solvent.

Methyl Benzylidene Camphor: Awhite,fine crystalline powder.Very soluble in chloroform;freely soluble in alcohol;practically insoluble in water.

Methyl Isobutyl Ketone: Transparent,colorless,mobile,volatile liquid,having a faint ketonic and camphoraceous odor.Slightly soluble in water;miscible with alcohol,with ether,and with benzene.NFcategory:Alcohol denaturant;solvent.

Methyl Salicylate: Colorless,yellowish,or reddish liquid,having the characteristic odor and taste of wintergreen.It boils between 219and 224,with some decomposition.Slightly soluble in water;soluble in alcohol and in glacial acetic acid.NFcategory:Flavors and perfumes.

Methylbenzethonium Chloride: White,hygroscopic crystals,having a mild odor.Its solutions are neutral or slightly alkaline to litmus.Very soluble in water,in alcohol,and in ether;practically insoluble in chloroform.

Methylcellulose: White,fibrous powder or granules.Its aqueous suspensions are neutral to litmus.It swells in water and produces a clear to opalescent,viscous,colloidal suspension.Insoluble in alcohol,in ether,and in chloroform;soluble in glacial acetic acid and in a mixture of equal volumes of alcohol and chloroform.NFcategory:Coating agent;suspending and/or viscosity-increasing agent;tablet binder.

Methyldopa: White to yellowish-white,odorless,fine powder,which may contain friable lumps.Sparingly soluble in water;very soluble in 3Nhydrochloric acid;slightly soluble in alcohol;practically insoluble in ether.

Methyldopate Hydrochloride: White or practically white,odorless or practically odorless,crystalline powder.Freely soluble in water,in alcohol,and in methanol;slightly soluble in chloroform;practically insoluble in ether.

Methylene Blue: Dark green crystals or crystalline powder having a bronze-like luster.Is odorless or practically so,and is stable in air.Its solutions in water and in alcohol are deep blue in color.Soluble in water and in chloroform;sparingly soluble in alcohol.

Methylene Chloride: Clear,colorless,mobile liquid,having an odor resembling that of chloroform.Miscible with alcohol,with ether,and with fixed and volatile oils.NFcategory:Solvent.

Methylergonovine Maleate: White to pinkish-tan,microcrystalline powder.Is odorless.Slightly soluble in water and in alcohol;very slightly soluble in chloroform and in ether.

Methylparaben: White,crystalline powder or colorless crystals.Slightly soluble in water;freely soluble in alcohol and in methanol.NFcategory:Antimicrobial preservative.

Methylparaben Sodium: White,hygroscopic powder.Freely soluble in water;sparingly soluble in alcohol;insoluble in fixed oils.

Methylphenidate Hydrochloride: White,odorless,fine,crystalline powder.Its solutions are acid to litmus.Freely soluble in water and in methanol;soluble in alcohol;slightly soluble in chloroform and in acetone.

Methylprednisolone: White to practically white,odorless,crystalline powder.Melts at about 240,with some decomposition (see Melting Range or Temperature á741ñ).Practically insoluble in water;sparingly soluble in alcohol,in dioxane,and in methanol;slightly soluble in acetone and in chloroform;very slightly soluble in ether.

Methylprednisolone Acetate: White or practically white,odorless,crystalline powder.Melts at about 225,with some decomposition (see Melting Range or Temperature á741ñ).Practically insoluble in water;soluble in dioxane;sparingly soluble in acetone,in alcohol,in chloroform,and in methanol;slightly soluble in ether.

Methylprednisolone Hemisuccinate: White or nearly white,odorless or nearly odorless,hygroscopic solid.Very slightly soluble in water;freely soluble in alcohol;soluble in acetone.

Methylprednisolone Sodium Succinate: White or nearly white,odorless,hygroscopic,amorphous solid.Very soluble in water and in alcohol;very slightly soluble in acetone;insoluble in chloroform.

Methyltestosterone: White or creamy white crystals or crystalline powder.Is odorless and is stable in air,but is slightly hygroscopic.Is affected by light.Practically insoluble in water;soluble in alcohol,in methanol,in ether,and in other organic solvents;sparingly soluble in vegetable oils.

Methysergide Maleate: White to yellowish-white or reddish-white,crystalline powder.Is odorless or has not more than a slight odor.Slightly soluble in water and in alcohol;very slightly soluble in chloroform;practically insoluble in ether.

Metoclopramide Hydrochloride: White or practically white,crystalline,odorless or practically odorless powder.Very soluble in water;freely soluble in alcohol;sparingly soluble in chloroform;practically insoluble in ether.

Metoprolol Succinate: White to off-white powder.Freely soluble in water;soluble in methanol;sparingly soluble in alcohol;slightly soluble in isopropyl alcohol.

Metoprolol Tartrate: White,crystalline powder.Very soluble in water;freely soluble in methylene chloride,in chloroform,and in alcohol;slightly soluble in acetone;insoluble in ether.

Metronidazole: White to pale yellow,odorless crystals or crystalline powder.Is stable in air,but darkens on exposure to light.Sparingly soluble in water and in alcohol;slightly soluble in ether and in chloroform.

Metronidazole Benzoate: White to slightly yellow,crystalline powder.Freely soluble in methylene chloride;soluble in acetone;slightly soluble in alcohol;very slightly soluble in ethyl ether;practically insoluble in water.

Metyrapone: White to light amber,fine,crystalline powder,having a characteristic odor.Darkens on exposure to light.Sparingly soluble in water;soluble in methanol and in chloroform.It forms water-soluble salts with acids.

Mexiletine Hydrochloride: White powder.Freely soluble in dehydrated alcohol and in water;slightly soluble in acetonitrile;practically insoluble in ether.Optically inactive (1in 20solution in water).

Mezlocillin Sodium: White to pale yellow,crystalline powder.Freely soluble in water.

Mibolerone: White to off-white powder.Slightly soluble in chloroform,in dioxane,and in methylene chloride;practically insoluble in water (0.0454mg per mLat 37).

Miconazole: White to pale cream powder.Melts in the range of 78to 88.May exhibit polymorphism.Insoluble in water;soluble in ether;freely soluble in alcohol,in methanol,in isopropyl alcohol,in acetone,in propylene glycol,in chloroform,and in dimethylformamide.

Miconazole Nitrate: White or practically white,crystalline powder,having not more than a slight odor.Melts in the range of 178to 183,with decomposition.Insoluble in ether;very slightly soluble in water and in isopropyl alcohol;slightly soluble in alcohol,in chloroform,and in propylene glycol;sparingly soluble in methanol;soluble in dimethylformamide;freely soluble in dimethyl sulfoxide.

Milrinone: White to tan,crystalline solid.Is hygroscopic.Freely soluble in dimethyl sulfoxide;practically insoluble in water,in chloroform,and in methanol.

Mineral Oil: Colorless,transparent,oily liquid,free or practically free from fluorescence.Is odorless and tasteless when cold,and develops not more than a faint odor of petroleum when heated.Insoluble in water and in alcohol;soluble in volatile oils.Miscible with most fixed oils but not with castor oil.NFcategory:Solvent;vehicle (oleaginous).

Light Mineral Oil: Colorless,transparent,oily liquid,free,or practically free,from fluorescence.Is odorless and tasteless when cold,and develops not more than a faint odor of petroleum when heated.Insoluble in water and in alcohol;soluble in volatile oils.Miscible with most fixed oils,but not with castor oil.NFcategory:Tablet and/or capsule lubricant;vehicle (oleaginous).

Minocycline Hydrochloride: Yellow,crystalline powder.Sparingly soluble in water;soluble in solutions of alkali hydroxides and carbonates;slightly soluble in alcohol;practically insoluble in chloroform and in ether.

Minoxidil: White to off-white,crystalline powder.Melts in the approximate range of between 248and 268,with decomposition.Soluble in alcohol and in propylene glycol;sparingly soluble in methanol;slightly soluble in water;practically insoluble in chloroform,in acetone,in ethyl acetate,and in hexane.

Mitomycin: Blue-violet,crystalline powder.Slightly soluble in water;soluble in acetone,in methanol,in butyl acetate,and in cyclohexanone.

Mitotane: White,crystalline powder,having a slight,aromatic odor.Practically insoluble in water;soluble in alcohol,in ether,in solvent hexane,and in fixed oils and fats.

Mitoxantrone Hydrochloride: Dark blue powder.Sparingly soluble in water;slightly soluble in methanol;practically insoluble in acetone,in acetonitrile,and in chloroform.

Mometasone Furoate: White to off-white powder.Melts at about 220,with decomposition.Soluble in acetone and in methylene chloride.

Monensin Sodium: Off-white to tan,crystalline powder.Slightly soluble in water;soluble in chloroform and in methanol;practically insoluble in solvent hexane.

Monobenzone Ointment: Dispersible with,but not soluble in,water.

Monoethanolamine: Clear,colorless,moderately viscous liquid,having a distinctly ammoniacal odor.Miscible with water,with acetone,with alcohol,with glycerin,and with chloroform.Immiscible with ether,with solvent hexane,and with fixed oils,although it dissolves many essential oils.

Monosodium Glutamate: White,practically odorless,free-flowing crystals or crystalline powder.Freely soluble in water;sparingly soluble in alcohol.May have either a slightly sweet or a slightly salty taste.NFcategory:Flavors and perfumes.

Monothioglycerol: Colorless or pale yellow,viscous liquid,having a slight sulfidic odor.Is hygroscopic.Miscible with alcohol.Freely soluble in water;insoluble in ether.NFcategory:Antioxidant.

Moricizine Hydrochloride: White to off-white,crystalline powder.Melts at about 189,with decomposition.Soluble in water and in alcohol.

Morphine Sulfate: White,feathery,silky crystals,cubical masses of crystals,or white,crystalline powder.Is odorless,and when exposed to air it gradually loses water of hydration.Darkens on prolonged exposure to light.Soluble in water;freely soluble in hot water;slightly soluble in alcohol but more so in hot alcohol;insoluble in chloroform and in ether.

Mumps Skin Test Antigen: Slightly turbid liquid.

Mumps Virus Vaccine Live: Solid having the characteristic appearance of substances dried from the frozen state.The Vaccine is to be constituted with a suitable diluent just prior to use.Constituted vaccine undergoes loss of potency on exposure to sunlight.

Mupirocin: White to off-white,crystalline solid.Freely soluble in acetone,in chloroform,in dehydrated alcohol,and in methanol;slightly soluble in ether;very slightly soluble in water.