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USP Acebutolol Hydrochloride RS
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USP Acepromazine Maleate RS
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USP Acesulfame Potassium RS
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USP Acetaminophen RS
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USP Acetanilide Melting Point RS
.

USP Acetazolamide RS
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USP Glacial Acetic Acid RS.
1S (USP31)

USP Acetohexamide RS
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USP Acetohydroxamic Acid RS
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USP Acetylcholine Chloride RS
.

USP Acetylcysteine RS
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USP Acetyltributyl Citrate RS
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USP Acetyltriethyl Citrate RS
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USP Actein RS.
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USP Acitretin RS.
1S (USP31)
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USP Acitretin Related Compound A RS
[(2Z,4E,6E, 8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoic acid] (C21H26O3 326.43). 1S (USP31)
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USP Acitretin Related Compound B RS
[(ethyl (all-E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate)] (C23H30O3 354.48). 1S (USP31)

USP Acyclovir RS
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USP Ademetionine Disulfate Tosylate RS.
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USP Adenine RS
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USP Adenosine RS
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USP Adipic Acid RS
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USP Agigenin RS
.

USP Agnuside RS
.

USP Air–Helium RS.

USP l-Alanine RS
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USP Beta Alanine RS
Click to View Structure [3-aminopropionic acid].

USP Albendazole RS
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USP Albuterol RS
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USP Albuterol Sulfate RS
.

USP Alclometasone Dipropionate RS
.

USP Alcohol RS
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USP Dehydrated Alcohol RS
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USP Alcohol Determination—Acetonitrile RS
.

USP Alcohol Determination—Alcohol RS
.

USP Alendronate Sodium RS
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USP Alfentanil Hydrochloride RS.

USP Allantoin RS
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USP Alliin RS
.

USP Allopurinol RS
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USP Allopurinol Related Compound A RS
Click to View Structure [3-amino-4-carboxamidopyrazole hemisulfate] (C4H6N4O)2·H2SO4 350.32) .

USP Allopurinol Related Compound B RS
Click to View Structure [5-(formylamino)-1H-pyrazole-4-carboxamide] (C5H6N4O2 154.13).

USP Allopurinol Related Compound C RS
Click to View Structure [N-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide] (C6H6N6O 178.15).

USP Allopurinol Related Compound D RS
Click to View Structure [ethyl 5-amino-1H-pyrazole-4-carboxylate] (C6H9N3O2 155.15).

USP Allopurinol Related Compound E RS
[ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate].

USP Allopurinol Related Compound F RS
[ethyl 3-(2-carbethoxy-2-cyanoethenyl)amino-1H-pyrazole-4-carboxylate].

USP S-Allyl-l-Cysteine RS
.

USP Alprazolam RS
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USP Alprostadil RS
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USP Alteplase RS.
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USP Altretamine RS
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USP Dried Aluminum Hydroxide Gel RS
.

USP Amantadine Hydrochloride RS
.

USP Amcinonide RS
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USP Amifostine RS
.

USP Amifostine Disulfide RS
Click to View Structure [1,3-propanediamine, N,N-(dithiodi-2,1-ethanediyl)bis, tetrahydrochloride] (C10H30N4S2Cl4 412.32) .

USP Amifostine Thiol RS
Click to View Structure [ethanethiol, 2-[(3-aminopropyl)amino]-, dihydrochloride] (C5H16N2SCl2 207.17) .

USP Amikacin RS
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USP Amiloride Hydrochloride RS
.

USP Amiloxate RS
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USP Aminobenzoate Potassium RS
.

USP Aminobenzoic Acid RS
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USP Aminobutanol RS
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USP Aminocaproic Acid RS
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USP N-(Aminocarbonyl)-N-[([5-nitro-2-furanyl]-methylene)-amino]-glycine RS
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USP 2-Amino-5-chlorobenzophenone RS
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USP 3-Amino-2,4,6-triiodobenzoic Acid RS
Click to View Structure (C7H4I3NO2 514.83) .

USP 5-Amino-2,4,6-triiodo-N-methylisophthalamic Acid RS
Click to View Structure (C9H7I3N2O3 571.88) .

USP Aminoglutethimide RS
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USP m-Aminoglutethimide RS
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USP Aminohippuric Acid RS
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USP 5-Aminoimidazole-4-carboxamide Hydrochloride RS
Click to View Structure (C4 H6N4O·HCl 162.58) .

USP Amino Methacrylate Copolymer RS.

USP Aminopentamide Sulfate RS
.

USP 4-Aminophenol RS.
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USP m-Aminophenol RS
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USP Aminosalicylic Acid RS
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USP Amitraz RS
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USP Amitriptyline Hydrochloride RS
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USP Amitriptyline Related Compound A RS
Click to View Structure (also known as Dibenzosuberone) [10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-one] (C15H12O 208.26).

USP Amitriptyline Related Compound B RS
Click to View Structure (also known as Amitriptynol) [5-[3-(Dimethylamino)propyl]-10,11-dihydro-5H-dibenzo[a,d]-cyclohepten-5-ol] (C20H25O 295.42).

USP Amlodipine Besylate RS.
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USP Ammonio Methacrylate Copolymer, Type A RS
.

USP Ammonio Methacrylate Copolymer, Type B RS
.

USP Ammonium Chloride RS
.

USP Amobarbital RS
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USP Amodiaquine Hydrochloride RS
.

USP Amoxapine RS
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USP Amoxicillin RS
.

USP Amphotericin B RS
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USP Ampicillin RS
.

USP Ampicillin Sodium RS
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USP Ampicillin Trihydrate RS
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USP Amprolium RS
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USP Anecortave Acetate RS.
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USP Anecortave Acetate Related Compound A RS.
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USP 1,6-Anhydro-d-glucose RS.
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USP Anileridine Hydrochloride RS
.

USP Antazoline Phosphate RS
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USP Anthralin RS
.

USP Antipyrine RS
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USP Apigenin-7-Glucoside RS
.

USP Apomorphine Hydrochloride RS
.

USP Apraclonidine Hydrochloride RS
.

USP Aprotinin RS.

USP Aprotinin System Suitability RS.

USP l-Arabinitol RS
Click to View Structure [l-arabitol, 1,2,3,4,5-pentanepentol] (C5H12O5 152.15) .

USP l-Arginine RS
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USP Arginine Hydrochloride RS
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USP Arsanilic Acid RS
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USP Ascorbic Acid RS
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USP Asparagine Anhydrous RS.
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USP Asparagine Monohydrate RS.
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USP Aspartame RS
.

USP Aspartame Acesulfame RS
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USP Aspartame Related Compound A RS
Click to View Structure [5-benzyl-3,6-dioxo-2-piperazineacetic acid] (C13H14N2O4 262.27) .

USP Aspartic Acid RS
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USP Aspirin RS
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USP Astemizole RS
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USP Atenolol RS
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USP Atovaquone RS
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USP Atovaquone Related Compound A RS
Click to View Structure [cis-2[4-(4-chlorophenyl)cyclohexyl]-3-hydroxy-1,4-naphthoquinone] .

USP Atracurium Besylate RS
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USP Atropine Sulfate RS
.

USP Aurothioglucose RS
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USP Avobenzone RS
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USP Azaerythromycin A RS
.

USP Azaperone RS
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USP Azatadine Maleate RS
.

USP Azathioprine RS
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USP Azithromycin RS
.

USP Azithromycin Identity RS
[A mixture of azithromycin, 3¢-(N-N-dimethyl-3¢-N-formyl-azithromycin, 3¢-N-demethyl-3¢-N-formylazithromycin (Rotamer 1), 3¢-N-demethyl-3¢-N-formylazithromycin (Rotamer 2), 3¢-de(dimethylamino)-3¢-oxoazithromycin, 2-desethyl-2-propylazithromycin, 3-deoxyazithromycin and 3¢-N-demethyl-3¢-N-[(4-methylphenyl)sulfonyl]azithromycin].

USP Azithromycin N-Oxide RS.

USP Azo-aminoglutethimide RS
.

USP Aztreonam RS
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USP Aztreonam E-Isomer RS
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USP Open Ring Aztreonam RS
Click to View Structure (C18H19N5O9S2 453.46) .