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USP Caffeine RS
.

USP Caffeine Melting Point RS
Click to View Structure .

USP Calcifediol RS
.

USP Calcitonin Salmon RS.

USP Calcitonin Salmon Related Compound A RS
Click to View Structure [N-acetyl-cys1-calcitonin] (C146H243N44O49S2 3463).

USP Calcitriol RS
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USP Calcitriol Solution RS
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USP Calcium Ascorbate RS
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USP Calcium Gluceptate RS
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USP Calcium Lactate RS.
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USP Calcium Lactobionate RS
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USP Calcium Pantothenate RS
.

USP Calcium Saccharate RS
.

USP Candelilla Wax RS
.

USP Capecitabine RS.
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USP Capecitabine Related Compound A RS.
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USP Capecitabine Related Compound B RS.
Click to View Structure

USP Capecitabine Related Compound C RS.
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USP Capreomycin Sulfate RS
.

USP Caprylic Acid RS.
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USP Caprylocaproyl Polyoxylglycerides RS
.

USP Capsaicin RS
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USP Captopril RS
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USP Captopril Disulfide RS
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USP Carbachol RS
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USP Carbamazepine RS
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USP Carbamazepine Related Compound A RS
Click to View Structure [10, 11-dihydrocarbamazepine].

USP Carbamazepine Related Compound B RS
Click to View Structure [iminostilbene].

USP Carbenicillin Indanyl Sodium RS
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USP Carbenicillin Monosodium Monohydrate RS
.

USP Carbidopa RS
.

USP Carbidopa Related Compound A RS
Click to View Structure [3-O-methylcarbidopa] (C11H16N2O4 240.26) .

USP Carbinoxamine Maleate RS
.

USP Urea C 13 RS
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USP Carboplatin RS
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Add the following:

USP Carboprost Tromethamine RS.
Click to View Structure USP31

USP Carisoprodol RS
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Add the following:

USP Carprofen RS.
Click to View Structure USP31
Add the following:

USP Carprofen Related Compound A RS
Click to View Structure [carbazole] (C12H9N 167.21). USP31

USP Carteolol Hydrochloride RS
.

USP Carvedilol RS.
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USP Carvedilol Related Compound A RS
Click to View Structure [1-[[9-[2-hydroxy-3-[[2-(2-methoxyphenoxy)ethyl]amino]propyl]-9H-carbazol-4-yl]oxy]-3-[[2-(2-methoxyphenoxy)ethyl]amino]propan-2-ol] .

USP Carvedilol Related Compound B RS
Click to View Structure [1,1¢-[[2-(2-methoxyphenoxy)ethyl]nitrilo]bis[3-(9H-carbazol-4-yloxy)propan-2-ol] .

USP Carvedilol Related Compound C RS
Click to View Structure [(2RS)-1-[benzyl[2-(2-methoxyphenoxyethyl]amino]-3-(9H-cabazol-4-yloxy)propan-2-ol] .

USP Carvedilol Related Compound D RS
Click to View Structure [4-(2,3-epoxypropoxy)carbazole] .

USP Carvedilol Related Compound E RS
Click to View Structure [2-(2-methoxyphenoxy)ethylamine] .

USP Casticin RS
.
Add the following:

USP Powdered Cat's Claw Extract RS.
1S (USP31)

USP Cathinone Hydrochloride RS
[-aminopropiophenone hydrochloride] (C9H11NO·HCl 185.65) .

USP Cefaclor RS
.

USP Cefaclor Delta-3 Isomer RS
Click to View Structure .

USP Cefadroxil RS
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USP Cefamandole Lithium RS
.

USP Cefamandole Nafate RS
.

USP Cefazolin RS
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USP Cefepime Hydrochloride RS
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USP Cefepime Hydrochloride System Suitability RS
This is a mixture of cefepime hydrochloride related compound A ([6R-[6,7(E)]]-1-[[7-[[(2-amino-4-thiazolyl) (methoxyimino)acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-1-methylpyrrolidinium chloride, monohydrochloride, monohydrate; (C19H25ClN6O5S2·HCl·H2O 571.50); cefepime related compound B ([6R-trans]-7-[[[2-[[(2-amino-4-thiazolyl)(methoxyimino)acetyl]amino]-4-thiazolyl](methoxyimino)acetyl]amino]-3-(1-methylpyrrolidinium-1-yl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid, inner salt; (C25H29N9O7S3 663.75); and cefepime hydrochloride.

USP Cefixime RS
Click to View Structure .

USP Cefmenoxime Hydrochloride RS
.

USP Cefmetazole RS
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USP Cefonicid Sodium RS
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USP Cefoperazone Dihydrate RS
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USP Ceforanide RS
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USP Cefotaxime Sodium RS
.

USP Cefotetan RS
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USP Cefotiam Hydrochloride RS
.

USP Cefoxitin RS
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USP Cefpiramide RS
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USP Cefpodoxime Proxetil RS
.

USP Cefprozil (E)-Isomer RS
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USP Cefprozil (Z)-Isomer RS
Click to View Structure .

USP Ceftazidime Delta-3-Isomer RS
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USP Ceftazidime Pentahydrate RS
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USP Ceftizoxime RS
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USP Ceftriaxone Sodium RS
.

USP Ceftriaxone Sodium E-Isomer RS
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USP Cefuroxime Axetil RS
.

USP Cefuroxime Axetil Delta-3 Isomers RS
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USP Cefuroxime Sodium RS
Click to View Structure .

USP Cellaburate RS
.

USP Cellacefate RS
.

USP F1 Cells for Cell Proliferation Test RS
(ATCC cell line FDCP-F1 shipped with approval from USP).

USP Cellulose Acetate RS
.

USP Cephaeline Hydrobromide RS
Click to View Structure .

USP Cephalexin RS
.

USP Cephalothin Sodium RS
.

USP Cephapirin Benzathine RS
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USP Cephapirin Sodium RS
.

USP Cephradine RS
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USP Cetyl Alcohol RS
.

USP Cetyl Palmitate RS
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USP Cetylpyridinium Chloride RS
.

USP Chlorambucil RS
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USP Chloramphenicol RS
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USP Chloramphenicol Palmitate RS
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USP Chloramphenicol Palmitate Nonpolymorph A RS
.

USP Chloramphenicol Palmitate Polymorph A RS
.

USP Chlordiazepoxide RS
Click to View Structure .

USP Chlordiazepoxide Related Compound A RS
Click to View Structure [7-chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one 4-oxide] (C15H11ClN2O2 286.72) .

USP Chlordiazepoxide Hydrochloride RS
.

USP Chlorhexidine RS
Click to View Structure .

USP Chlorhexidine Acetate RS
.

USP Chlorhexidine Related Compounds RS
.

USP Chlorobutanol RS
.

USP 2-Chloro-3,5-dimethylphenol RS
Click to View Structure (C8H9ClO 156.61) .

USP Chlorogenic Acid RS.

USP -Chlorogenin RS
.

USP Chlorophyllin Copper Complex Sodium RS.

USP Chloroprocaine Hydrochloride RS
.

USP Chloroquine Phosphate RS
.

USP Chlorothiazide RS
Click to View Structure .

USP Chloroxylenol RS
Click to View Structure .

USP Chloroxylenol Related Compound A RS
Click to View Structure [2-chloro-3,5-dimethylphenol] .

USP Chlorpheniramine Extended-Release Tablets RS (Drug Release Calibrator, Single Unit)
.

USP Chlorpheniramine Maleate RS
.

USP Chlorpromazine Hydrochloride RS
.

USP Chlorpropamide RS
Click to View Structure .

USP (E)-Chlorprothixene RS
Click to View Structure .

USP Chlortetracycline Hydrochloride RS
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USP Chlorthalidone RS
Click to View Structure .

USP Chlorthalidone Related Compound A RS
Click to View Structure [4¢-Chloro-3¢-sulfamoyl-2-benzophenone carboxylic acid] .

USP Chlorzoxazone RS
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USP Chlorzoxazone Related Compound A RS
[2-amino-4-chlorophenol] (C6H6ClNO 143.57) .

USP Cholecalciferol RS
Click to View Structure .

USP D4,6-Cholestadienol RS [cholesta-4,6-dien-3-ol]
Click to View Structure (C27H44O 384.64) .

USP Cholesteryl Caprylate RS
Click to View Structure (C35H60O2 512.86) .

USP Cholestyramine Resin RS
.

USP Choline Bitartrate RS
.

USP Choline Chloride RS
.

USP Chondroitin Sulfate Sodium RS
.

USP Chromium Picolinate RS
Click to View Structure .

USP Chymotrypsin RS
.

USP Ciclopirox RS
Click to View Structure .

USP Ciclopirox Related Compound A RS
Click to View Structure [3-cyclohexyl-4,5-dihydro-5-methyl-5-isoxazolyl acetic acid] .

USP Ciclopirox Related Compound B RS
Click to View Structure [6-cyclohexyl-4-methyl-2-pyrone] .

USP Ciclopirox Olamine RS
.

USP Cilastatin Ammonium Salt RS
Click to View Structure .

USP Cilostazol RS.
Click to View Structure

USP Cilostazol Related Compound A RS
Click to View Structure [6-hydroxy-3,4-dihydro-1H-quinolin-2-one] (C9H9NO2 163.17) .

USP Cilostazol Related Compound B RS
Click to View Structure [6-[4-(1-cyclohexyl-1H-tetrazol-5-yl)-butoxy]-1H-quinolin-2-one] (C20H25N5O2 367.45) .

USP Cilostazol Related Compound C RS
Click to View Structure [1-(4-(5-cyclohexyl-1H-tetrazol-1-yl)butyl)-6-(4-(1-cyclohexyl-1H-tetrazol-5-yl)butoxy)-3,4-dihydroquinolin-2(1H)-one] (C31H43N9O3 589.73).

USP Cimetidine RS
Click to View Structure .

USP Cimetidine Hydrochloride RS
.

USP Cinoxacin RS
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USP Ciprofloxacin RS
Click to View Structure .

USP Ciprofloxacin Ethylenediamine Analog RS
Click to View Structure [1-cyclopropyl- 6-fluoro-1,4-dihydro-4-oxo-7-[(2-aminoethyl)amino]-3-quinolinecarboxylic acid hydrochloride] (C15H16FN3O3·HCl 341.77) .

USP Ciprofloxacin Hydrochloride RS
Click to View Structure .

USP Cisplatin RS
Click to View Structure .

USP Citalopram Hydrobromide RS.
Click to View Structure

USP Citalopram Related Compound A RS
Click to View Structure [1-(3-dimethylaminopropyl)-1-(4¢-fluorophenyl)-1,3-dihydroisobenzofuran-5-carboxamide] (C20H23FN2O2 342.22).

USP Citalopram Related Compound B RS
Click to View Structure [1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-3-hydroxy-1,3-dihydroisobenzofuran-5-carbonitrile] (C20H21FN2O2 340.22).

USP Citalopram Related Compound C RS
Click to View Structure [3-(3-N,N-dimethylamino)-1-(4-fluorophenyl)-6-cyano-1(3H)-isobenzofuranone] (C20H19FN2O2 338.22).

USP Citalopram Related Compound D RS
Click to View Structure [1-(4-fluorophenyl)-1-(3-(methylamino)propyl)-1,3-dihydroisobenzofuran-5-carbonitrile hydrochloride] (C19H19FN2O·HCl 346.83) .

USP Citalopram Related Compound E RS
Click to View Structure [1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-1,3-dihydrobenzofuran-5-carbonitrile-N-oxide] (C20H21FN2O2 340.22).

USP Citalopram Related Compound F RS
Click to View Structure [dimethyl-(1-methyl-3,3-diphenylallyl)amine hydrochloride] (C18H21NHCl 286.64) .

USP Citalopram Related Compound G RS
Click to View Structure [1-(4¢-fluorophenyl)-1-(3-dimethylaminopropyl)-5-chlorophthalane hydrobromide] (C19H21FNOCl·HBr 414.74).

USP Citalopram Related Compound H RS
Click to View Structure [1-( 4¢-fluorophenyl)-1-(3-dimethylaminopropyl)-5-bromophthalane hydrobromide] (C19H21FNOBr·HBr 459.1).

USP Citric Acid RS
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USP Clarithromycin RS
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USP Clarithromycin Identity RS.
Click to View Structure

USP Clarithromycin Related Compound A RS
Click to View Structure [6,11-di-O-methylerythromycin A] (C39H71NO13 762.00) .

USP Clavam-2-Carboxylate Potassium RS
.

USP Clavulanate Lithium RS
Click to View Structure .

USP Clemastine Fumarate RS
.

USP Clidinium Bromide RS
Click to View Structure .

USP Clidinium Bromide Related Compound A RS
Click to View Structure [3-hydroxy-1-methylquinuclidinium bromide] (C8H16BrNO 222.13) .

USP Clindamycin Hydrochloride RS
.

USP Clindamycin Palmitate Hydrochloride RS
.

USP Clindamycin Phosphate RS
.

USP Clioquinol RS
Click to View Structure .

USP Clobetasol Propionate RS
.

USP Clobetasol Propionate Related Compound A RS
Click to View Structure [9-fluoro-11-hydroxy-16-methyl 3-oxo-androsta-1,4-diene-17(R)-spiro-2¢-[4¢-chloro-5¢-ethylfuran-3¢(2¢H)-one]] (C25H30ClFO4 448.96) .

USP Clocortolone Pivalate RS
Click to View Structure .

USP Clofazimine RS
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USP Clofibrate RS
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USP Clomiphene Citrate RS
.

USP Clomiphene Related Compound A RS
Click to View Structure [(E,Z)-2-[4-(1,2-diphenylethenyl)phenoxy]-N,N-diethylethanamine hydrochloride] (C26 H29NO·HCl 407.98) .

USP Clomipramine Hydrochloride RS
.

USP Clonazepam RS
Click to View Structure .

USP Clonazepam Related Compound A RS
Click to View Structure [3-amino-4-(2-chlorophenyl)-6-nitrocarbostyril] (C15H10CIN3O3 315.72) .

USP Clonazepam Related Compound B RS
Click to View Structure [2-amino-2¢-chloro-5-nitrobenzophenone] (C13H9ClN2O3 276.68) .

USP Clonazepam Related Compound C RS
Click to View Structure [2-bromo-2¢-(2-chlorobenzoyl)-4¢-nitroacetanilide] .

USP Clonidine RS
Click to View Structure .

USP Clonidine Hydrochloride RS
.

USP Clonidine Related Compound B RS
Click to View Structure [2-[(E)-2,6-dichlorophenylimino]-1-(1-{2-[(E)-2,6-dichlorophenylimino]-imidazolidin-1-yl}ethyl)imidazolidine] (C20H20Cl4N6 486.23).

USP Clopidogrel Bisulfate RS.

USP Clopidogrel Related Compound A RS
Click to View Structure [(+)-(S)-(o-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-acetic acid].

USP Clopidogrel Related Compound B RS
Click to View Structure [methyl (±)-(o-chlorophenyl)-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-acetate, hydrochloride].

USP Clopidogrel Related Compound C RS
Click to View Structure [methyl ()-(R)-(o-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-acetate, hydrogen sulfate].

USP Clorazepate Dipotassium RS
.

USP Clorsulon RS
Click to View Structure .

USP Clotrimazole RS
Click to View Structure .

USP Clotrimazole Related Compound A RS
Click to View Structure [(o-chlorophenyl)diphenylmethanol] (C19H15ClO 294.78) .

USP Powdered Red Clover Extract RS
.

USP Cloxacillin Benzathine RS
.

USP Cloxacillin Sodium RS
.

USP Clozapine RS
Click to View Structure .

USP Cocaine Hydrochloride RS
.

USP Cod Liver Oil RS.

USP Codeine N-Oxide RS
Click to View Structure (C18H21NO4 315.37) .

USP Codeine Phosphate RS
Click to View Structure .

USP Codeine Sulfate RS
.

USP Powdered Black Cohosh Extract RS
.

USP Colchicine RS
.

USP Colestipol Hydrochloride RS
.

USP Colistimethate Sodium RS
.

USP Colistin Sulfate RS
.

USP Copovidone RS
Click to View Structure .

USP Corticotropin RS
.

USP Cortisone Acetate RS
.

USP Creatinine RS
Click to View Structure .

USP Cromolyn Sodium RS
.

USP Crospovidone RS
Click to View Structure .

USP Crotamiton RS
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USP Cyanocobalamin RS
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USP Cyclandelate RS
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USP Cyclizine Hydrochloride RS
.

USP Cyclobenzaprine Hydrochloride RS
.

USP Alpha Cyclodextrin RS
Click to View Structure .

USP Beta Cyclodextrin RS
Click to View Structure .

USP Gamma Cyclodextrin RS.
Click to View Structure

USP Cyclomethicone 4 RS
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USP Cyclomethicone 5 RS
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USP Cyclomethicone 6 RS
Click to View Structure .

USP Cyclopentolate Hydrochloride RS
.

USP Cyclophosphamide RS
.

USP 2-Cyclopropylmethylamino-5-chlorobenzophenone RS
Click to View Structure .

USP Cycloserine RS
Click to View Structure .

USP Cyclosporine RS
Click to View Structure .

USP Cyclosporine Resolution Mixture RS
[This material is a 100:1 mixture of cyclosporine and cyclosporine U. ] .

USP Cyproheptadine Hydrochloride RS
.

USP l-Cysteine Hydrochloride RS
.

USP Cytarabine RS
Click to View Structure .

USP Cytosine RS.
Click to View Structure