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.

Octahydropyrido[1,2-a][1,4]diazepin-5(2H)-one structure

Octahydropyrido[1,2-a][1,4]diazepin-5(2H)-one

CAS: 1000577-67-2

In Stock97%+

3-Chloro-2-fluoro-6-iodobenzonitrile structure

3-Chloro-2-fluoro-6-iodobenzonitrile

CAS: 1000577-68-3

In Stock97%+

2-Bromo-6-chloro-4-(trifluoromethyl)phenyl isothiocyanate structure

2-Bromo-6-chloro-4-(trifluoromethyl)phenyl isothiocyanate

CAS: 1000577-70-7

In Stock97%+

octahydro-1H-pyrrolo[1,2-a][1,4]diazepin-5-one structure

octahydro-1H-pyrrolo[1,2-a][1,4]diazepin-5-one

CAS: 1000577-71-8

In Stock97%+

2-Amino-3-bromo-5-chloro-6-fluorobenzonitrile structure

2-Amino-3-bromo-5-chloro-6-fluorobenzonitrile

CAS: 1000577-72-9

In Stock97%+

3-Chloro-4,5-dibromobenzotrifluoride structure

3-Chloro-4,5-dibromobenzotrifluoride

CAS: 1000577-74-1

In Stock97%+

1,4-Diazabicyclo[4.3.1]decan-2-one structure

1,4-Diazabicyclo[4.3.1]decan-2-one

CAS: 1000577-75-2

In Stock97%+

5-Bromo-3-chloro-2-fluorobenzonitrile structure

5-Bromo-3-chloro-2-fluorobenzonitrile

CAS: 1000577-76-3

In Stock97%+

4-Bromo-2,6-diethylphenyl isothiocyanate structure

4-Bromo-2,6-diethylphenyl isothiocyanate

CAS: 1000577-77-4

In Stock97%+

tert-Butyl (1-benzylazetidin-3-yl)carbamate structure

tert-Butyl (1-benzylazetidin-3-yl)carbamate

CAS: 1000577-78-5

In Stock97%+

2-Amino-3-bromo-6-fluoro-5-iodobenzonitrile structure

2-Amino-3-bromo-6-fluoro-5-iodobenzonitrile

CAS: 1000577-79-6

In Stock97%+

4-Bromo-2,5-difluorophenyl isothiocyanate structure

4-Bromo-2,5-difluorophenyl isothiocyanate

CAS: 1000577-80-9

In Stock97%+

tert-Butyl 3-bromo-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-carboxylate structure

tert-Butyl 3-bromo-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-carboxylate

CAS: 1000577-81-0

In Stock97%+

6-Amino-2-fluoro-3-iodobenzonitrile structure

6-Amino-2-fluoro-3-iodobenzonitrile

CAS: 1000577-82-1

In Stock97%+

1-Chloro-2,4-dibromo-3,6-difluorobenzene structure

1-Chloro-2,4-dibromo-3,6-difluorobenzene

CAS: 1000577-83-2

In Stock97%+

2,4-Dichlorofuro[2,3-d]pyrimidine structure

2,4-Dichlorofuro[2,3-d]pyrimidine

CAS: 1000577-84-3

In Stock97%+

2-Amino-5-chloro-6-fluoro-3-iodobenzonitrile structure

2-Amino-5-chloro-6-fluoro-3-iodobenzonitrile

CAS: 1000577-85-4

In Stock97%+

2,4-Dibromo-3,6-difluoroaniline structure

2,4-Dibromo-3,6-difluoroaniline

CAS: 1000577-86-5

In Stock97%+

Ethyl 2-((4-chloroquinazolin-7-yl)oxy)acetate structure

Ethyl 2-((4-chloroquinazolin-7-yl)oxy)acetate

CAS: 1000577-87-6

In Stock97%+

2-Amino-5-bromo-6-fluoro-3-iodobenzonitrile structure

2-Amino-5-bromo-6-fluoro-3-iodobenzonitrile

CAS: 1000577-88-7

In Stock97%+

1,3-Dibromo-2,5-difluoro-4-iodobenzene structure

1,3-Dibromo-2,5-difluoro-4-iodobenzene

CAS: 1000577-89-8

In Stock97%+

5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine structure

5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine

CAS: 1000577-90-1

In Stock97%+

3-Bromo-4-isothiocyanatobenzonitrile structure

3-Bromo-4-isothiocyanatobenzonitrile

CAS: 1000577-91-2

In Stock97%+

4-Bromo-3,5-difluorophenyl isothiocyanate structure

4-Bromo-3,5-difluorophenyl isothiocyanate

CAS: 1000577-92-3

In Stock97%+

3-Bromo-4-iodobenzonitrile structure

3-Bromo-4-iodobenzonitrile

CAS: 1000577-94-5

In Stock97%+

1,3-Dibromo-2,4-difluoro-6-iodobenzene structure

1,3-Dibromo-2,4-difluoro-6-iodobenzene

CAS: 1000577-95-6

In Stock97%+

tert-Butyl 1-bromo-6,7-dihydrothieno[3,4-c]pyridine-5(4H)-carboxylate structure

tert-Butyl 1-bromo-6,7-dihydrothieno[3,4-c]pyridine-5(4H)-carboxylate

CAS: 1000577-96-7

In Stock97%+

4-Chloro-2-cyano-3-fluorophenylisothiocyanate structure

4-Chloro-2-cyano-3-fluorophenylisothiocyanate

CAS: 1000577-97-8

In Stock97%+

2,4-Dibromo-3,5-difluorochlorobenzene structure

2,4-Dibromo-3,5-difluorochlorobenzene

CAS: 1000577-98-9

In Stock97%+

4-Amino-3-bromo-5-iodobenzonitrile structure

4-Amino-3-bromo-5-iodobenzonitrile

CAS: 1000578-00-6

In Stock97%+

2,6-Dibromo-4-fluorophenyl isothiocyanate structure

2,6-Dibromo-4-fluorophenyl isothiocyanate

CAS: 1000578-01-7

In Stock97%+

5-Bromo-4-chloro-2-iodotoluene structure

5-Bromo-4-chloro-2-iodotoluene

CAS: 1000578-03-9

In Stock97%+

3-Chloro-2,4-dibromo-6-methylphenylisothiocyanate structure

3-Chloro-2,4-dibromo-6-methylphenylisothiocyanate

CAS: 1000578-06-2

In Stock97%+

2,4-Dibromo-5-fluorophenyl isothiocyanate structure

2,4-Dibromo-5-fluorophenyl isothiocyanate

CAS: 1000578-07-3

In Stock97%+

2,4-Dichloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine structure

2,4-Dichloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine

CAS: 1000578-08-4

In Stock97%+

2,4-Dibromo-5-fluorobenzenesulfonyl chloride structure

2,4-Dibromo-5-fluorobenzenesulfonyl chloride

CAS: 1000578-09-5

In Stock97%+

Methyl 4-oxo-3,4-dihydroquinazoline-8-carboxylate structure

Methyl 4-oxo-3,4-dihydroquinazoline-8-carboxylate

CAS: 1000578-10-8

In Stock97%+

1,5-Dibromo-2-chloro-4-fluorobenzene structure

1,5-Dibromo-2-chloro-4-fluorobenzene

CAS: 1000578-11-9

In Stock97%+

2,4-Dibromo-5-fluoroiodobenzene structure

2,4-Dibromo-5-fluoroiodobenzene

CAS: 1000578-13-1

In Stock97%+

4,5-Dibromo-2-fluoroaniline structure

4,5-Dibromo-2-fluoroaniline

CAS: 1000578-14-2

In Stock97%+

3,4-Dibromo-6-fluorophenyl isothiocyanate structure

3,4-Dibromo-6-fluorophenyl isothiocyanate

CAS: 1000578-15-3

In Stock97%+

1,2-Dibromo-4-chloro-5-fluorobenzene structure

1,2-Dibromo-4-chloro-5-fluorobenzene

CAS: 1000578-16-4

In Stock97%+

2,4-Dibromo-5-fluoroaniline structure

2,4-Dibromo-5-fluoroaniline

CAS: 1000578-17-5

In Stock97%+

3-Bromo-4-iodoisopropylbenzene structure

3-Bromo-4-iodoisopropylbenzene

CAS: 1000578-18-6

In Stock97%+

2-Bromo-4-nitrophenyl isothiocyanate structure

2-Bromo-4-nitrophenyl isothiocyanate

CAS: 1000578-19-7

In Stock97%+

2-Bromo-4,5,6-trifluorophenyl isothiocyanate structure

2-Bromo-4,5,6-trifluorophenyl isothiocyanate

CAS: 1000578-20-0

In Stock97%+

2,6-Dibromo-4-trifluoromethoxyphenyl isothiocyanate structure

2,6-Dibromo-4-trifluoromethoxyphenyl isothiocyanate

CAS: 1000578-21-1

In Stock97%+

1,3-Dibromo-2-iodo-5-(trifluoromethoxy)benzene structure

1,3-Dibromo-2-iodo-5-(trifluoromethoxy)benzene

CAS: 1000578-22-2

In Stock97%+

3,5-Dibromo-2-iodotrifluoromethoxybenzene structure

3,5-Dibromo-2-iodotrifluoromethoxybenzene

CAS: 1000578-23-3

In Stock97%+

1,5-Dibromo-2-chloro-3-(trifluoromethoxy)benzene structure

1,5-Dibromo-2-chloro-3-(trifluoromethoxy)benzene

CAS: 1000578-24-4

In Stock97%+

1,3-Dibromo-5-(tert-butyl)-2-chlorobenzene structure

1,3-Dibromo-5-(tert-butyl)-2-chlorobenzene

CAS: 1000578-25-5

In Stock97%+

AS 19 structure

AS 19

CAS: 1000578-26-6

In Stock97%+

100058-36-4 3-(4-Ethylphenyl)tetrahydrofuran C12H16O Y6757 structure

100058-36-4 3-(4-Ethylphenyl)tetrahydrofuran C12H16O Y6757

CAS: 100058-36-4

In Stock97%+

2-(2,3-Dihydro-1h-inden-4-yl)ethan-1-ol structure

2-(2,3-Dihydro-1h-inden-4-yl)ethan-1-ol

CAS: 100058-37-5

In Stock97%+

2-Isobutylbenzoic acid structure

2-Isobutylbenzoic acid

CAS: 100058-55-7

In Stock97%+

3-(Benzyloxy)cyclobutanol structure

3-(Benzyloxy)cyclobutanol

CAS: 100058-61-5

In Stock97%+

1-(Thiophen-2-yl)cyclohexane-1-carboxylic acid structure

1-(Thiophen-2-yl)cyclohexane-1-carboxylic acid

CAS: 100058-72-8

In Stock97%+

4'-Methyl-5-nitro-[1,1'-biphenyl]-3-carboxylic acid structure

4'-Methyl-5-nitro-[1,1'-biphenyl]-3-carboxylic acid

CAS: 1000587-29-0

In Stock97%+

Methyl 3-(4-methylphenyl)-5-nitrobenzoate structure

Methyl 3-(4-methylphenyl)-5-nitrobenzoate

CAS: 1000587-30-3

In Stock97%+

1-(4-Fluoro-3-(trifluoromethyl)phenyl)urea structure

1-(4-Fluoro-3-(trifluoromethyl)phenyl)urea

CAS: 1000588-77-1

In Stock97%+

4-(4-Methylphenyl)sulfinylbutanoic acid structure

4-(4-Methylphenyl)sulfinylbutanoic acid

CAS: 100059-07-2

In Stock97%+

2-(2-(Hydroxymethyl)-4,5-dimethoxyphenyl)acetaldehyde structure

2-(2-(Hydroxymethyl)-4,5-dimethoxyphenyl)acetaldehyde

CAS: 100059-18-5

In Stock97%+

Ethyl 2-Ethyl-3-(2-furanyl)-3-oxopropanoate structure

Ethyl 2-Ethyl-3-(2-furanyl)-3-oxopropanoate

CAS: 100059-37-8

In Stock97%+

4-Butylsulfonylbenzoic acid structure

4-Butylsulfonylbenzoic acid

CAS: 100059-51-6

In Stock97%+

4,5-Diethoxy-2-mercaptobenzoic acid structure

4,5-Diethoxy-2-mercaptobenzoic acid

CAS: 100059-52-7

In Stock97%+

4-(Benzylsulfonyl)butanoic acid structure

4-(Benzylsulfonyl)butanoic acid

CAS: 100059-54-9

In Stock97%+

3-(3,4-Dimethoxybenzenesulfonyl)propanoic acid structure

3-(3,4-Dimethoxybenzenesulfonyl)propanoic acid

CAS: 100059-84-5

In Stock97%+

7-Phenyl-1,4-diazabicyclo[4.1.0]heptan-5-one structure

7-Phenyl-1,4-diazabicyclo[4.1.0]heptan-5-one

CAS: 100059-96-9

In Stock97%+

2,4-Dichloro-3-iodoaniline structure

2,4-Dichloro-3-iodoaniline

CAS: 1000590-77-1

In Stock97%+

2-Fluoro-4-methyl-3-(trifluoromethyl)aniline structure

2-Fluoro-4-methyl-3-(trifluoromethyl)aniline

CAS: 1000590-79-3

In Stock97%+

4-Chloro-2-fluoro-3-methylaniline structure

4-Chloro-2-fluoro-3-methylaniline

CAS: 1000590-85-1

In Stock97%+

2,5-Bis(heptyloxy)terephthalohydrazide structure

2,5-Bis(heptyloxy)terephthalohydrazide

CAS: 1000591-49-0

In Stock97%+

(R)-5-Fluoro-N-(1-(4-isopropoxybenzyl)pyrrolidin-3-yl)-2-methylbenzenesulfonamide structure

(R)-5-Fluoro-N-(1-(4-isopropoxybenzyl)pyrrolidin-3-yl)-2-methylbenzenesulfonamide

CAS: 1000592-49-3

In Stock97%+

1-(3,4-dichlorophenyl)-2-oxopyrrolidine-3-carboxylic acid structure

1-(3,4-dichlorophenyl)-2-oxopyrrolidine-3-carboxylic acid

CAS: 10006-67-4

In Stock97%+

3-Ethoxypyridin-2-amine structure

3-Ethoxypyridin-2-amine

CAS: 10006-74-3

In Stock97%+

1,3,4,7-Tetramethylisoindoline structure

1,3,4,7-Tetramethylisoindoline

CAS: 10006-81-2

In Stock97%+

1-(1h-Indol-3-yl)-2-methylpropan-2-ol structure

1-(1h-Indol-3-yl)-2-methylpropan-2-ol

CAS: 10006-90-3

In Stock97%+

2-(1H-Indol-3-yl)propan-1-ol structure

2-(1H-Indol-3-yl)propan-1-ol

CAS: 10006-92-5

In Stock97%+

4-(2,4-Dimethyloxazol-5-yl)aniline structure

4-(2,4-Dimethyloxazol-5-yl)aniline

CAS: 100060-02-4

In Stock97%+

N-((5-methylfuran-2-yl)methyl)pyridin-2-amine structure

N-((5-methylfuran-2-yl)methyl)pyridin-2-amine

CAS: 100060-05-7

In Stock97%+

2-Methoxy-5,6,7,8-tetrahydroquinoline-3-carbonitrile structure

2-Methoxy-5,6,7,8-tetrahydroquinoline-3-carbonitrile

CAS: 100060-08-0

In Stock97%+

4-(Benzo[d]thiazol-2-yl)butanamide structure

4-(Benzo[d]thiazol-2-yl)butanamide

CAS: 100060-13-7

In Stock97%+

3-(1,3-Dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-2-yl)propanenitrile structure

3-(1,3-Dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-2-yl)propanenitrile

CAS: 100060-32-0

In Stock97%+

6-(Dimethylamino)-1H-indole-2-carboxylic acid structure

6-(Dimethylamino)-1H-indole-2-carboxylic acid

CAS: 100060-36-4

In Stock97%+

2-Amino-3-(5-hydroxy-1H-indol-2-yl)propanoic acid structure

2-Amino-3-(5-hydroxy-1H-indol-2-yl)propanoic acid

CAS: 100060-77-3

In Stock97%+

4-((4-Nitrophenyl)imino)pentan-2-one structure

4-((4-Nitrophenyl)imino)pentan-2-one

CAS: 100060-84-2

In Stock97%+

5-Acetyl-4-(furan-2-yl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one structure

5-Acetyl-4-(furan-2-yl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one

CAS: 100060-89-7

In Stock97%+

4-[(4-Isothiocyanatophenyl)sulfonyl]morpholine structure

4-[(4-Isothiocyanatophenyl)sulfonyl]morpholine

CAS: 100060-98-8

In Stock97%+

4-(Benzyloxy)-3-isopropylbenzoic acid structure

4-(Benzyloxy)-3-isopropylbenzoic acid

CAS: 1000604-03-4

In Stock97%+

4-Nitro-2-(trifluoromethyl)-1H-indole structure

4-Nitro-2-(trifluoromethyl)-1H-indole

CAS: 1000604-20-5

In Stock97%+

3-Acetamido-3-(4-nitrophenyl)propanoic acid structure

3-Acetamido-3-(4-nitrophenyl)propanoic acid

CAS: 100061-23-2

In Stock97%+

5-Amino-1-(4-methylphenyl)-1H-pyrazole-4-carboxamide structure

5-Amino-1-(4-methylphenyl)-1H-pyrazole-4-carboxamide

CAS: 100061-56-1

In Stock97%+

2,6-Diamino-4-(benzyloxy)pyrimidine structure

2,6-Diamino-4-(benzyloxy)pyrimidine

CAS: 100061-59-4

In Stock97%+

(S)-1-(3,5-Bis(trifluoromethyl)phenyl)-N-methylethanamine 4-methylbenzenesulfonate structure

(S)-1-(3,5-Bis(trifluoromethyl)phenyl)-N-methylethanamine 4-methylbenzenesulfonate

CAS: 1000614-08-3

In Stock97%+

(4S,4′S)-2,2′-Propylidenebis[4,5-dihydro-4-phenyloxazole] structure

(4S,4′S)-2,2′-Propylidenebis[4,5-dihydro-4-phenyloxazole]

CAS: 1000614-48-1

In Stock97%+

2-(2-Chlorophenyl)-1-phenylethan-1-amine structure

2-(2-Chlorophenyl)-1-phenylethan-1-amine

CAS: 1000615-44-0

In Stock97%+

4-Hydroxypyrrolidine-2-carboxamide structure

4-Hydroxypyrrolidine-2-carboxamide

CAS: 1000616-27-2

In Stock97%+

Ethyl 1-(2,4-dichlorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate structure

Ethyl 1-(2,4-dichlorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate

CAS: 100062-49-5

In Stock97%+

4-((4-Aminophenyl)thio)phenol structure

4-((4-Aminophenyl)thio)phenol

CAS: 100062-94-0

In Stock97%+

3,6-Bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione structure

3,6-Bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione

CAS: 1000623-95-9

In Stock97%+

« Prev1…1213141516…100Next »