USP Famotidine RS Click to View Structure .

USP Felodipine RS Click to View Structure .

USP Felodipine Related Compound A RS Click to View Structure [ethyl methyl 4-(2,3-dichlorophenyl)-2,6-dimethylpyridine-3,5-dicarboxylate] (C18H17Cl2NO4 382.24) .

USP Fenbendazole RS Click to View Structure .

USP Fenbendazole Related Compound A RS Click to View Structure [methyl (1H-benzimidazole-2-yl)carbamate] (C9H9N3O2 191.19) .

USP Fenbendazole Related Compound B RS Click to View Structure [methyl [5(6)-chlorobenzimidazole-2-yl]carbamate] (C9H8ClN3O2 225.63) .

USP Fenofibrate RS. Click to View Structure

USP Fenofibrate Related Compound A RS Click to View Structure [(4-chlorophenyl)(4-hydroxyphenyl)methanone].

USP Fenofibrate Related Compound B RS Click to View Structure [2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoic acid, or fenofibric acid].

USP Fenofibrate Related Compound C RS Click to View Structure [1-methylethyl 2-[[2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoyl]oxy]-2-methylpropanoate].

USP Fenoldopam Mesylate RS .

USP Fenoldopam Related Compound A RS Click to View Structure [1-methyl-3-benzazepine-7,8-diol, 6-chloro-2,3,4,5-tetrahydro-1-(4-hydroxyphenyl)-, methanesulfonate (salt)] (C17H18ClNO3·CH4SO3 415.89) .

USP Fenoldopam Related Compound B RS Click to View Structure [1H-3-benzazepine-7,8-diol, 2,3,4,5-tetrahydro-1-(4-hydroxyphenyl)-, methanesulfonate (salt)] (C16H16NO3·CH4SO3 366.42) .

USP Fenoprofen Calcium RS .

USP Fenoprofen Sodium RS Click to View Structure .

USP Fentanyl Citrate RS .

USP Fexofenadine Hydrochloride RS .

USP Fexofenadine Related Compound A RS Click to View Structure [benzeneacetic acid, 4-[1-oxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-,-dimethyl] (C32H37NO4 499.65) .

USP Fexofenadine Related Compound B RS Click to View Structure [3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-,-dimethyl benzeneacetic acid hydrochloride] (C32H39NO4·HCl 538.12) .

USP Finasteride RS Click to View Structure .

USP Fish Oil RS.
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USP Flavoxate Hydrochloride RS. USP32
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USP Flavoxate Related Compound A RS [3-methylflavone-8-carboxylic acid ] (C17H12O4 280.27). USP32

USP Flecainide Acetate RS .

USP Flecainide Related Compound A RS Click to View Structure [3-[2,5-bis(2,2,2-trifluoroethoxy)phenyl]-1,5,6,7,8,8a-hexahydroimidazo-[1,5a]pyridine hydrochloride] (C17H18F6N2O2·HCl 432.8) .

USP Floxuridine RS Click to View Structure .

USP Fluconazole RS Click to View Structure .

USP Fluconazole Related Compound A RS Click to View Structure [2-[2-fluoro-4-(1H-1,2,4-triazol-1-yl)phenyl]-1,3-bis(1H-1,2,4-triazol-1-yl)-propan-2-ol].

USP Fluconazole Related Compound B RS Click to View Structure [2-(4-fluorophenyl)-1,3-bis(1H-1,2,4-triazol-1-yl)-propan-2-ol] .

USP Fluconazole Related Compound C RS Click to View Structure [1,1¢-(1,3-phenylene)di(1H-1,2,4-triazole)] .

USP Flucytosine RS Click to View Structure .

USP Fludarabine Phosphate RS .

USP Fludeoxyglucose RS Click to View Structure .

USP Fludeoxyglucose Related Compound A RS Click to View Structure [4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8.]hexacosane] (C18H36N2O6 376.49) .

USP Fludeoxyglucose Related Compound B RS Click to View Structure (C6H11ClO5 198.60) .

USP Fludrocortisone Acetate RS .

USP Flumazenil RS Click to View Structure .

USP Flumazenil Related Compound A RS Click to View Structure [8-fluoro-5,6-dihydro-5-methyl-6-oxo-4H-imidazol-[1,5-a][1,4]benzodiazepine-3-carboxylic acid] (C13H10FN3O3 275.24) .

USP Flumazenil Related Compound B RS Click to View Structure [Ethyl 8-hydroxy-5,6-dihydro-5-methyl-6-oxo-4H-imidazol-[1,5-a][1,4]benzodiazepine-3-carboxylate] (C15H15N3O4 301.30) .

USP Flumazenil Related Compound C RS Click to View Structure [N,N-dimethylformamide diethyl acetal].

USP Flumethasone Pivalate RS .

USP Flunisolide RS .

USP Flunixin Meglumine RS .

USP Fluocinolone Acetonide RS Click to View Structure .

USP Fluocinonide RS Click to View Structure .

USP Fluorescein RS Click to View Structure .

USP l-Fluorodopa RS. Click to View Structure

USP Fluorometholone RS Click to View Structure .

USP Fluorometholone Acetate RS .

USP Fluoroquinolonic Acid RS Click to View Structure .

USP Fluorouracil RS Click to View Structure .

USP Fluoxetine Hydrochloride RS Click to View Structure .

USP Fluoxetine Related Compound A RS Click to View Structure [N-methyl-3-phenyl-3-[(,,-(trifluoro-m-tolyl)oxy]propylamine hydrochloride] (C17H18F3NO·HCl 345.79) .

USP Fluoxetine Related Compound B RS Click to View Structure [N-methyl-3-phenylpropylamine] (C10H15N 149.24) .

USP Fluoxetine Related Compound C RS Click to View Structure [N-methyl-N-[3-phenyl-3-(4-trifluoromethyl-phenoxy)-propyl]-succinamic acid] (C21H22F3NO4 409.40) .

USP Fluoxymesterone RS Click to View Structure .

USP Fluphenazine Decanoate Dihydrochloride RS Click to View Structure .

USP Fluphenazine Enanthate Dihydrochloride RS (C29H38F3N3O2S·2HCl 622.63) .

USP Fluphenazine Hydrochloride RS Click to View Structure .

USP Flurandrenolide RS Click to View Structure .

USP Flurazepam Hydrochloride RS .

USP Flurazepam Related Compound C RS Click to View Structure [5-chloro-2-(2-diethylaminoethyl(amino)-2¢-fluorobenzophenone hydrochloride] (C19H22ClFN2O·HCl 385.31) .

USP Flurazepam Related Compound F RS Click to View Structure [7-chloro-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one] (C15H10ClFN2O 288.71) .

USP Flurbiprofen RS Click to View Structure .

USP Flurbiprofen Related Compound A RS Click to View Structure [2-(4-biphenylyl)propionic acid] (C15H14O2 226.28) .

USP Flurbiprofen Sodium RS .

USP Flutamide RS Click to View Structure .

USP o-Flutamide RS Click to View Structure [2-methyl-N-[6-nitro-3-(trifluoromethyl)phenyl]propanamide] (C11H11F3N2O3 276.22) .

USP Fluticasone Propionate RS [S-(fluoromethyl)6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carbothioate, 17-propionate] (C25H31F3O5S 500.6).

USP Fluticasone Propionate Nasal Spray Resolution Mixture RS— Click to View Structure This Reference Standard is a mixture of fluticasone propionate and fluticasone propionate related compound D, and the chemical names for both are given below:
Fluticasone propionate: S-Fluoromethyl 6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxyandrosta-1,4-diene-17-carbothioate.
Fluticasone propionate related compound D: S-methyl-6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxy-androsta-1,4-diene-17-carbothioate.

USP Fluticasone Propionate Related Compounds Mixture RS— This Reference Standard is a mixture of fluticasone propionate and fluticasone propionate related compounds D and F, and the chemical names for all are given below:
Fluticasone propionate: S-Fluoromethyl 6, 9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxyandrosta-1,4-diene-17-carbothioate.
Fluticasone propionate related compound D: S-methyl 6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxy-androsta-1,4-diene-17-carbothioate.
Fluticasone propionate related compound F: [6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid].

USP Fluticasone Propionate System Suitability Mixture RS— Click to View Structure It is a mixture of
USP Fluticasone Propionate RS and fluticasone propionate related compounds B, C, and D.
Fluticasone propionate related compound A [6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxyandrosta-1,4-diene-17-carbonylsulfenic acid].
Fluticasone propionate related compound B [6,9-difluoro-11-hydroxy-16-methyl-2¢,3,4¢-trioxo-17-spiro(androsta-1,4-diene-17,5¢-(1,3)oxathiolane)].
Fluticasone propionate related compound C [S-fluoromethyl 17-acetyloxy-6,9-difluoro-11-hydroxy-16-methyl-3-oxo-androsta-1,4-diene-17-carbothioate].
Fluticasone propionate related compound D [S-methyl 6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-propionyloxy-androsta-1,4-diene-17-carbothioate].
Fluticasone propionate related compound E [6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxo-androsta-1,4-diene-17-carboxylic acid 6,9-difluoro-17-(fluoromethylthio) carbonyl-11-hydroxy-16-methyl-3-oxo-androsta-1,4-dien-17-yl ester].

USP Fluvastatin Sodium RS.

USP Fluvastatin Related Compound B RS Click to View Structure [fluvastatin t-butyl ester].

USP Fluvastatin for System Suitability RS Click to View Structure [fluvastatin sodium and fluvastatin sodium anti-isomer].

USP Fluvoxamine Maleate RS Click to View Structure .

USP Folic Acid RS Click to View Structure .

USP Folic Acid Related Compound A RS [calcium formyltetrahydrofolate] .
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USP Formoterol Fumarate RS .USP32
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USP Formoterol Resolution Mixture RS— This standard is a mixture of formoterol and formoterol fumarate impurity I. Impurity I is N-[2-hydroxy-5-[(1RS)-1-hydroxy-2-[[(1SR)-2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide fumarate salt (2:1)(diastereoisomer). USP32
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USP Formoterol Fumarate System Suitability Mixture RS —It is a mixture of
USP Formoterol Fumarate RS and formoterol related compounds A, B, C, D, E, F, G, and H.
Formoterol related compound A [1-(3-amino-4-hydroxyphenyl)-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethanol].
Formoterol related compound B [N-[2-hydroxy-5-[(1RS)-1-hydroxy-2-[[2-(4-methoxyphenyl)ethyl]amino]ethyl]phenyl]formamide].
Formoterol related compound C [N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]acetamide].
Formoterol related compound D [N-[2-hydroxy-5-[1-hydroxy-2-[methyl[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide].
Formoterol related compound E [N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxy-3-methylphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide].
Formoterol related compound F [N-[2-hydroxy-5-[1-[[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]amino]-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide].
Formoterol related compound G [(2RS)-1-(4-methoxyphenyl)propan-2-amine].
Formoterol related compound H [N-[5-[(1RS)-2-[benzyl[(1RS)-2-(4-methoxyphenyl)-1-methylethyl]amino]-1-hydroxyethyl]-2-hydroxyphenyl]formamide (monobenzyl analogue)].USP32

USP Formononetin RS .

USP 10-Formylfolic Acid RS .
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USP Foscarnet Sodium RS. USP32
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USP Foscarnet Related Compound B RS [disodium (ethoxyoxidophosphanyl)formate] (C3H5Na2O5P 198.02). USP32
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USP Foscarnet Related Compound D RS [O,O-diethyl ethoxycarbonylphosphonate] (C7H15O5P 210.16). USP32

USP Fosinopril Sodium RS. Click to View Structure

USP Fosinopril Related Compound A RS Click to View Structure [(4S)-4-cyclohexyl-[(4-phenylbutyl)phosphinyl]acetyl-l-proline] (C23H34NO5P 435.49).

USP Fosinopril Related Compound B RS Click to View Structure [(4S)-4-cyclohexyl-1-[(R)-[(S)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]acetyl-d-proline propionate (ester), hemibarium salt, sesquihydrate] (C30H45NO7P·½Ba·1½H2O 658.34).

USP Fosinopril Related Compound C RS Click to View Structure [(4S)-4-cyclohexyl-1-[(RS)-[(RS)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]acetyl-l-proline propionate (ester), sodium salt] (C30H45NNaO7P 585.64).

USP Fosinopril Related Compound D RS Click to View Structure [(4R)-4-cyclohexyl-1-[(R)-[(S)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]acetyl-l-proline propionate (ester), sodium salt] (C30H45NNaO7P 585.64).

USP Fosinopril Related Compound E RS Click to View Structure [(4S)-4-phenyl-1-[(R)-[(S)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]acetyl-l-proline propionate (ester), sodium salt] (C30H39NNaO7P 579.60).

USP Fosinopril Related Compound F RS Click to View Structure [(4S)-4-cyclohexyl-1-[(R)-[(S)-1-hydroxypropoxy](4-phenylbutyl)phosphinyl]acetyl-l-proline propionate (ester), sodium salt] (C29H43NNaO7P 571.62).

USP Fosinopril Related Compound G RS Click to View Structure [(4-phenylbutyl)phosphinylacetic acid, disodium salt] (C12H15Na2O4P 300.20).

USP Fosinopril Related Compound H RS Click to View Structure [4-phenylbutyl phosphonic acid] (C10H15O3P 214.20).

USP Fosphenytoin Sodium RS Click to View Structure .

USP Fructose RS Click to View Structure .

USP Fulvestrant RS. Click to View Structure

USP Fulvestrant System Suitability Mixture RS —Contains fulvestrant isomer A, fulvestrant isomer B, and fulvestrant -isomer.

USP Fumaric Acid RS Click to View Structure .

USP Furazolidone RS Click to View Structure .

USP Furosemide RS Click to View Structure .

USP Furosemide Related Compound A RS Click to View Structure [2-chloro-4-N-furfurylamino-5-sulfamoylbenzoic acid] (C12H11ClN2O5S 330.74) .

USP Furosemide Related Compound B RS Click to View Structure [4-chloro-5-sulfamoylanthranilic acid] (C7H7ClN2O4S 250.66) .