CATO Standards
Contact Us +86 138 2978 8188
Home / Products / Pharmaceutical Reference Standards
Product Category

Pharmaceutical Reference Standards

API and pharmaceutical reference standards for drug development, QC and regulatory submission.

(4-Methylpiperazin-1-yl)(piperidin-2-yl)methanone structure

(4-Methylpiperazin-1-yl)(piperidin-2-yl)methanone

CAS: 1008091-05-1

In Stock97%+

2-((4-Ethoxyphenyl)sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid structure

2-((4-Ethoxyphenyl)sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid

CAS: 1008091-79-9

In Stock97%+

5-[(2-Fluorophenyl)methyl]-N-methoxy-N-methyl-4-oxo-1H,2H,3H,3aH,4H,5H-pyrrolo[1,2-a]quinoxaline-7-sulfonamide structure

5-[(2-Fluorophenyl)methyl]-N-methoxy-N-methyl-4-oxo-1H,2H,3H,3aH,4H,5H-pyrrolo[1,2-a]quinoxaline-7-sulfonamide

CAS: 1008092-12-3

In Stock97%+

2-(2-Bromophenyl)-6-butyl-1,3,6,2-dioxazaborolane structure

2-(2-Bromophenyl)-6-butyl-1,3,6,2-dioxazaborolane

CAS: 1008106-85-1

In Stock97%+

2-iodobenzeneboronic acid structure

2-iodobenzeneboronic acid

CAS: 1008106-86-2

In Stock97%+

2,5-Dibromophenylboronic Acid structure

2,5-Dibromophenylboronic Acid

CAS: 1008106-93-1

In Stock97%+

2-((3,4-Dimethylphenyl)sulfonyl)acetonitrile structure

2-((3,4-Dimethylphenyl)sulfonyl)acetonitrile

CAS: 1008108-48-2

In Stock97%+

(2E)-3-(Dimethylamino)-2-(phenylsulfonyl)-2-propenenitrile structure

(2E)-3-(Dimethylamino)-2-(phenylsulfonyl)-2-propenenitrile

CAS: 1008108-50-6

In Stock97%+

7-bromo-2,4-dichloropyrrolo[2,1-f][1,2,4]triazine structure

7-bromo-2,4-dichloropyrrolo[2,1-f][1,2,4]triazine

CAS: 1008112-03-5

In Stock97%+

(3S,4R)-4-phenylpyrrolidin-3-ol structure

(3S,4R)-4-phenylpyrrolidin-3-ol

CAS: 1008112-09-1

In Stock97%+

2-Methoxy-5-(pyrrolidin-3-yl)pyridine structure

2-Methoxy-5-(pyrrolidin-3-yl)pyridine

CAS: 1008112-12-6

In Stock97%+

2-Methoxy-3-(3-pyrrolidinyl)pyridine structure

2-Methoxy-3-(3-pyrrolidinyl)pyridine

CAS: 1008112-13-7

In Stock97%+

(S)-2-(Pyrrolidin-3-yl)pyridine structure

(S)-2-(Pyrrolidin-3-yl)pyridine

CAS: 1008112-18-2

In Stock97%+

(R)-2-(Pyrrolidin-3-yl)pyridine structure

(R)-2-(Pyrrolidin-3-yl)pyridine

CAS: 1008112-19-3

In Stock97%+

4-ethynyl-2-fluoro-aniline structure

4-ethynyl-2-fluoro-aniline

CAS: 1008112-39-7

In Stock97%+

2-Ethyl-4-ethynylaniline structure

2-Ethyl-4-ethynylaniline

CAS: 1008112-49-9

In Stock97%+

2,6-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid structure

2,6-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid

CAS: 1008119-07-0

In Stock97%+

4-Acetyl-N,N-dimethylbenzamide structure

4-Acetyl-N,N-dimethylbenzamide

CAS: 1008119-09-2

In Stock97%+

2-(tert-Butoxy)-N-methylethanamine structure

2-(tert-Butoxy)-N-methylethanamine

CAS: 1008119-69-4

In Stock97%+

3-Fluoro-4-(4-Morpholinylcarbonyl)benzeneboronic acid, 97% structure

3-Fluoro-4-(4-Morpholinylcarbonyl)benzeneboronic acid, 97%

CAS: 1008119-70-7

In Stock97%+

3,4-Dimethoxy-N-[4-(3-nitrophenyl)-5-(1-piperidinylmethyl)-2-thiazolyl]-benzenesulfonamide structure

3,4-Dimethoxy-N-[4-(3-nitrophenyl)-5-(1-piperidinylmethyl)-2-thiazolyl]-benzenesulfonamide

CAS: 1008119-83-2

In Stock97%+

5-Chloro-N-(2-chloro-6-nitrophenyl)-2-hydroxybenzamide structure

5-Chloro-N-(2-chloro-6-nitrophenyl)-2-hydroxybenzamide

CAS: 1008121-01-4

In Stock97%+

Ethyl 1-amino-1H-imidazole-2-carboxylate structure

Ethyl 1-amino-1H-imidazole-2-carboxylate

CAS: 1008130-15-1

In Stock97%+

Furan-2,3,5-tricarbaldehyde structure

Furan-2,3,5-tricarbaldehyde

CAS: 1008130-51-5

In Stock97%+

3-(3-Methyl-3H-diazirin-3-yl)propan-1-amine structure

3-(3-Methyl-3H-diazirin-3-yl)propan-1-amine

CAS: 1008136-15-9

In Stock97%+

Ethyl 3,5-difluoro-2-methoxybenzoate structure

Ethyl 3,5-difluoro-2-methoxybenzoate

CAS: 1008138-31-5

In Stock97%+

3-(tert-Butyl)-5-(chlorosulfonyl)benzoic acid structure

3-(tert-Butyl)-5-(chlorosulfonyl)benzoic acid

CAS: 1008138-43-9

In Stock97%+

2-methyl-5-nitro-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine structure

2-methyl-5-nitro-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

CAS: 1008138-66-6

In Stock97%+

Ethyl 5-amino-6-methylpyridine-3-carboxylate structure

Ethyl 5-amino-6-methylpyridine-3-carboxylate

CAS: 1008138-73-5

In Stock97%+

Ethyl 5-iodo-6-methylnicotinate structure

Ethyl 5-iodo-6-methylnicotinate

CAS: 1008138-75-7

In Stock97%+

Methyl 3-((tert-butoxycarbonyl)amino)-5-(tert-butyl)benzoate structure

Methyl 3-((tert-butoxycarbonyl)amino)-5-(tert-butyl)benzoate

CAS: 1008139-17-0

In Stock97%+

tert-Butyl (2-methyl-5-nitropyridin-3-yl)carbamate structure

tert-Butyl (2-methyl-5-nitropyridin-3-yl)carbamate

CAS: 1008139-18-1

In Stock97%+

Isoxazole-4-boronic Acid structure

Isoxazole-4-boronic Acid

CAS: 1008139-25-0

In Stock97%+

(5S,6S)-4-Amino-5-fluoro-6-hydroxy-5,6-dihydropyrimidin-2(1H)-one structure

(5S,6S)-4-Amino-5-fluoro-6-hydroxy-5,6-dihydropyrimidin-2(1H)-one

CAS: 100814-57-1

In Stock97%+

(5S,6R)-4-Amino-5-fluoro-6-hydroxy-5,6-dihydropyrimidin-2(1H)-one structure

(5S,6R)-4-Amino-5-fluoro-6-hydroxy-5,6-dihydropyrimidin-2(1H)-one

CAS: 100814-60-6

In Stock97%+

6-(Trifluoromethoxy)pyridine-3-boronic Acid structure

6-(Trifluoromethoxy)pyridine-3-boronic Acid

CAS: 1008140-70-2

In Stock97%+

O-α-D-Glucopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→6A)-α-cyclodextrin structure

O-α-D-Glucopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→6A)-α-cyclodextrin

CAS: 100817-30-9

In Stock97%+

Stibogluconate acid structure

Stibogluconate acid

CAS: 100817-46-7

In Stock97%+

N-(4-methylbenzo[d]thiazol-2-yl)acetamide structure

N-(4-methylbenzo[d]thiazol-2-yl)acetamide

CAS: 100817-89-8

In Stock97%+

n-(6-Methoxybenzo[d]thiazol-2-yl)acetamide structure

n-(6-Methoxybenzo[d]thiazol-2-yl)acetamide

CAS: 100817-90-1

In Stock97%+

2-Acetamido-1,3-benzothiazole-6-carboxylic acid structure

2-Acetamido-1,3-benzothiazole-6-carboxylic acid

CAS: 100817-94-5

In Stock97%+

4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)butan-2-one structure

4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)butan-2-one

CAS: 100818-32-4

In Stock97%+

N-Benzylquinazolin-4-amine structure

N-Benzylquinazolin-4-amine

CAS: 100818-54-0

In Stock97%+

Ethyl 4-amino-3,5-dimethyl-1H-pyrrole-2-carboxylate structure

Ethyl 4-amino-3,5-dimethyl-1H-pyrrole-2-carboxylate

CAS: 100818-55-1

In Stock97%+

Ethyl 4-fluoro-3,5-dimethyl-1H-pyrrole-2-carboxylate structure

Ethyl 4-fluoro-3,5-dimethyl-1H-pyrrole-2-carboxylate

CAS: 100818-58-4

In Stock97%+

N-(1-(2-Isonicotinoylhydrazinyl)-1-oxopropan-2-yl)adamantane-1-carboxamide structure

N-(1-(2-Isonicotinoylhydrazinyl)-1-oxopropan-2-yl)adamantane-1-carboxamide

CAS: 1008184-56-2

In Stock97%+

4-Bromo-N-(1-((4,5-dihydrothiazol-2-yl)amino)-3-methyl-1-oxobutan-2-yl)benzamide structure

4-Bromo-N-(1-((4,5-dihydrothiazol-2-yl)amino)-3-methyl-1-oxobutan-2-yl)benzamide

CAS: 1008186-19-3

In Stock97%+

2-[4-(acetamidomethyl)benzenesulfonamido]-3-methylbutanoic acid structure

2-[4-(acetamidomethyl)benzenesulfonamido]-3-methylbutanoic acid

CAS: 1008187-54-9

In Stock97%+

2-(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)-N-propylacetamide structure

2-(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)-N-propylacetamide

CAS: 1008189-19-2

In Stock97%+

1-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)pyrrolidine-2-carboxylic acid structure

1-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)pyrrolidine-2-carboxylic acid

CAS: 1008191-83-0

In Stock97%+

4-(4-Fluorobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid structure

4-(4-Fluorobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid

CAS: 1008195-28-5

In Stock97%+

(9H-Purin-6-ylamino)-acetic acid structure

(9H-Purin-6-ylamino)-acetic acid

CAS: 10082-93-6

In Stock97%+

7-Nitroindoline structure

7-Nitroindoline

CAS: 100820-43-7

In Stock97%+

N2,N4-Dimethylpyridine-2,4-diamine structure

N2,N4-Dimethylpyridine-2,4-diamine

CAS: 100820-62-0

In Stock97%+

4-(Methylsulfanyl)-2-(2-phenylethenesulfonamido)butanoic acid structure

4-(Methylsulfanyl)-2-(2-phenylethenesulfonamido)butanoic acid

CAS: 1008200-40-5

In Stock97%+

2-(3-Oxo-1,2,3,4-tetrahydronaphtho[1,8-ef][1,4]diazepin-2-yl)-N-phenylacetamide structure

2-(3-Oxo-1,2,3,4-tetrahydronaphtho[1,8-ef][1,4]diazepin-2-yl)-N-phenylacetamide

CAS: 1008201-43-1

In Stock97%+

N-(3,5-dimethylphenyl)-5-oxopyrrolidine-2-carboxamide structure

N-(3,5-dimethylphenyl)-5-oxopyrrolidine-2-carboxamide

CAS: 1008201-89-5

In Stock97%+

2-(3-Isobutylureido)-3-methylpentanoic acid structure

2-(3-Isobutylureido)-3-methylpentanoic acid

CAS: 1008202-20-7

In Stock97%+

2-(2-Chlorobenzamido)-3-hydroxybutanoic acid structure

2-(2-Chlorobenzamido)-3-hydroxybutanoic acid

CAS: 1008206-36-7

In Stock97%+

8,9-Dimethoxy-3-(propan-2-yl)-5-sulfanylidene-2H,3H,5H,6H-imidazo[1,2-c]quinazolin-2-one structure

8,9-Dimethoxy-3-(propan-2-yl)-5-sulfanylidene-2H,3H,5H,6H-imidazo[1,2-c]quinazolin-2-one

CAS: 1008206-85-6

In Stock97%+

Methyl 6-(3-chlorophenyl)-5,7-dioxo-hexahydroimidazo[1,5-c][1,3]thiazole-3-carboxylate structure

Methyl 6-(3-chlorophenyl)-5,7-dioxo-hexahydroimidazo[1,5-c][1,3]thiazole-3-carboxylate

CAS: 1008207-83-7

In Stock97%+

Ethyl 6-Methylindole-3-carboxylate structure

Ethyl 6-Methylindole-3-carboxylate

CAS: 100821-48-5

In Stock97%+

Ethyl 6-Chloroindole-3-carboxylate structure

Ethyl 6-Chloroindole-3-carboxylate

CAS: 100821-50-9

In Stock97%+

2-(2,5,6-Trimethyl-thieno[2,3-d]pyrimidin-4-ylamino)-propionic acid structure

2-(2,5,6-Trimethyl-thieno[2,3-d]pyrimidin-4-ylamino)-propionic acid

CAS: 1008211-84-4

In Stock97%+

3-(1-Cyclohexyl-2,5-dioxoimidazolidin-4-yl)propanoic acid structure

3-(1-Cyclohexyl-2,5-dioxoimidazolidin-4-yl)propanoic acid

CAS: 1008213-43-1

In Stock97%+

5-(2-(2-(Cyclohexyloxy)-2-oxoethyl)-3-oxopiperazin-1-yl)-5-oxopentanoic acid structure

5-(2-(2-(Cyclohexyloxy)-2-oxoethyl)-3-oxopiperazin-1-yl)-5-oxopentanoic acid

CAS: 1008214-43-4

In Stock97%+

3-Methyl-2-((3-(trifluoromethyl)phenyl)sulfonamido)pentanoic acid structure

3-Methyl-2-((3-(trifluoromethyl)phenyl)sulfonamido)pentanoic acid

CAS: 1008214-80-9

In Stock97%+

5-methyl-1-(4-methylphenyl)imidazolidine-2,4-dione structure

5-methyl-1-(4-methylphenyl)imidazolidine-2,4-dione

CAS: 1008214-93-4

In Stock97%+

3-(Cyclopropylamino)-1-(p-tolyl)pyrrolidine-2,5-dione structure

3-(Cyclopropylamino)-1-(p-tolyl)pyrrolidine-2,5-dione

CAS: 1008220-64-1

In Stock97%+

5-[(2-Chloro-6-fluorophenyl)methyl]-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxalin-6-one structure

5-[(2-Chloro-6-fluorophenyl)methyl]-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxalin-6-one

CAS: 1008229-49-9

In Stock97%+

N-(2,5-Dichlorophenyl)-N-(methylsulfonyl)alanine structure

N-(2,5-Dichlorophenyl)-N-(methylsulfonyl)alanine

CAS: 1008229-92-2

In Stock97%+

N-(5-Chloro-2-methoxyphenyl)-N-(methylsulfonyl)alanine structure

N-(5-Chloro-2-methoxyphenyl)-N-(methylsulfonyl)alanine

CAS: 1008229-95-5

In Stock97%+

2-(2,6-Diisopropylphenyl)-5-nitroisoindoline-1,3-dione structure

2-(2,6-Diisopropylphenyl)-5-nitroisoindoline-1,3-dione

CAS: 100823-00-5

In Stock97%+

5-Amino-2-(2,6-diethylphenyl)isoindoline-1,3-dione structure

5-Amino-2-(2,6-diethylphenyl)isoindoline-1,3-dione

CAS: 100823-01-6

In Stock97%+

5-Amino-2-(2,6-diisopropylphenyl)isoindoline-1,3-dione structure

5-Amino-2-(2,6-diisopropylphenyl)isoindoline-1,3-dione

CAS: 100823-03-8

In Stock97%+

4-Chloro-2,6-diisopropylaniline structure

4-Chloro-2,6-diisopropylaniline

CAS: 100823-17-4

In Stock97%+

Propyl butylcarbamate structure

Propyl butylcarbamate

CAS: 100823-18-5

In Stock97%+

Methyl N-(4-fluorophenyl)-N-(methylsulfonyl)alaninate structure

Methyl N-(4-fluorophenyl)-N-(methylsulfonyl)alaninate

CAS: 1008235-58-2

In Stock97%+

N-Butyl-2-(3-oxopiperazin-2-yl)acetamide structure

N-Butyl-2-(3-oxopiperazin-2-yl)acetamide

CAS: 1008239-26-6

In Stock97%+

2-{[(2,5-dichlorophenyl)sulfonyl]amino}-4-(methylthio)butanoic acid structure

2-{[(2,5-dichlorophenyl)sulfonyl]amino}-4-(methylthio)butanoic acid

CAS: 1008243-41-1

In Stock97%+

2-(2-Fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid structure

2-(2-Fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid

CAS: 1008243-60-4

In Stock97%+

2-(4-Bromobenzenesulfonamido)-3-hydroxypropanoic acid structure

2-(4-Bromobenzenesulfonamido)-3-hydroxypropanoic acid

CAS: 1008243-95-5

In Stock97%+

2-Fluorobenzyl (furan-2-carbonyl)alaninate structure

2-Fluorobenzyl (furan-2-carbonyl)alaninate

CAS: 1008244-02-7

In Stock97%+

2-[2-(3,4-Dichlorophenoxy)acetamido]-3-phenylpropanoic acid structure

2-[2-(3,4-Dichlorophenoxy)acetamido]-3-phenylpropanoic acid

CAS: 1008248-63-2

In Stock97%+

4-(4-(tert-butyl)benzoyl)-3-propyl-3,4-dihydroquinoxalin-2(1H)-one structure

4-(4-(tert-butyl)benzoyl)-3-propyl-3,4-dihydroquinoxalin-2(1H)-one

CAS: 1008253-78-8

In Stock97%+

100826-98-0 2-[4-(2-Chlorophenyl)-9-methyl-6H-thieno-[3,2-f][1,2,4]-triazolo[4,3-a][1,4]diazepin-2-yl]ethane-1-carboxylic Acid 4-(2-Chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-2-propanoic Acid Desbromo Brotizolam 2-Propanoic Acid structure

100826-98-0 2-[4-(2-Chlorophenyl)-9-methyl-6H-thieno-[3,2-f][1,2,4]-triazolo[4,3-a][1,4]diazepin-2-yl]ethane-1-carboxylic Acid 4-(2-Chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-2-propanoic Acid Desbromo Brotizolam 2-Propanoic Acid

CAS: 100826-98-0

In Stock97%+

2-(4-Chlorobenzenesulfonamido)-N-[3-(trifluoromethyl)phenyl]propanamide structure

2-(4-Chlorobenzenesulfonamido)-N-[3-(trifluoromethyl)phenyl]propanamide

CAS: 1008261-45-7

In Stock97%+

3-((2,6-dimethylphenyl)carbamoyl)thiazolidine-2,4-dicarboxylic acid structure

3-((2,6-dimethylphenyl)carbamoyl)thiazolidine-2,4-dicarboxylic acid

CAS: 1008262-22-3

In Stock97%+

2-(4-Bromophenyl)-3-(tert-butoxycarbonyl)thiazolidine-4-carboxylic acid structure

2-(4-Bromophenyl)-3-(tert-butoxycarbonyl)thiazolidine-4-carboxylic acid

CAS: 1008262-90-5

In Stock97%+

N-(3,5-Dimethylphenyl)-N-(methylsulfonyl)alanine structure

N-(3,5-Dimethylphenyl)-N-(methylsulfonyl)alanine

CAS: 1008265-17-5

In Stock97%+

(3-(Morpholinosulfonyl)benzoyl)methionine structure

(3-(Morpholinosulfonyl)benzoyl)methionine

CAS: 1008265-56-2

In Stock97%+

2-[(2,3-Dihydro-1,4-benzodioxin-6-yl)sulfonyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid structure

2-[(2,3-Dihydro-1,4-benzodioxin-6-yl)sulfonyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid

CAS: 1008266-08-7

In Stock97%+

2-(Thiophene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid structure

2-(Thiophene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid

CAS: 1008267-14-8

In Stock97%+

Methyl 3,3-dimethylindoline-2-carboxylate structure

Methyl 3,3-dimethylindoline-2-carboxylate

CAS: 1008267-29-5

In Stock97%+

2-(2,5-Dimethylbenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid structure

2-(2,5-Dimethylbenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid

CAS: 1008267-37-5

In Stock97%+

2-[(1-Adamantylcarbonyl)amino]-3-methylpentanoic acid structure

2-[(1-Adamantylcarbonyl)amino]-3-methylpentanoic acid

CAS: 1008267-51-3

In Stock97%+

3-Acetyl-2-(furan-2-yl)-1,3-thiazolidine-4-carboxylic acid structure

3-Acetyl-2-(furan-2-yl)-1,3-thiazolidine-4-carboxylic acid

CAS: 1008267-56-8

In Stock97%+

((2,6-Dichlorophenyl)sulfonyl)valine structure

((2,6-Dichlorophenyl)sulfonyl)valine

CAS: 1008267-76-2

In Stock97%+

(E)-N-(2,5-Dihydroxystyryl)formamide structure

(E)-N-(2,5-Dihydroxystyryl)formamide

CAS: 100827-28-9

In Stock97%+

2-Amino-3-(2-chlorobenzoyl)-5-(2-carbomethoxyethyl)thiophene structure

2-Amino-3-(2-chlorobenzoyl)-5-(2-carbomethoxyethyl)thiophene

CAS: 100827-77-8

In Stock97%+

« Prev1…7576777879…100Next »