carbidopa and its Impurities

Carbidopa is used with another medicine called levodopa to treat the symptoms of Parkinson's disease. The pharmacologic objective is to get an exogenous dopamine-precursor known as levodopa/L-DOPA into the dopamine-deficient brains of PD patients.. Reference standards of Carbidopa API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 91 results for carbidopa Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 30 14000

Carbidopa Monohydrate

Carbidopa Monohydrate

  • Catalogue No.:PA 30 14000

  • CAS :

    38821-49-7

  • Molecular Formula : C10H16N2O5

  • Molecular Weight : 244.24

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14010

Carbidopa - Impurity A

L-Methyldopa

  • Catalogue No.:PA 30 14010

  • CAS :

    555-30-6

  • Molecular Formula : C10H13NO4

  • Molecular Weight : 211.21

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14020

Carbidopa - Impurity B

Methyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

  • Catalogue No.:PA 30 14020

  • CAS :

    18181-08-3

  • Molecular Formula : C11H15NO4

  • Molecular Weight : 225.24

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14030

3-O-Methyl Carbidopa (Mixture)

3-O-Methyl Carbidopa (Mixture)

  • Catalogue No.:PA 30 14030

  • CAS :

    85933-19-3

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14040

Carbidopa - Impurity D

Cyclohexylidene Carbidopa Methyl Ester

  • Catalogue No.:PA 30 14040

  • CAS :

    934371-48-9

  • Molecular Formula : C17H24N2O4

  • Molecular Weight : 320.38

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14050

Carbidopa - Impurity E

(S)-Carbidopa Methyl Ester

  • Catalogue No.:PA 30 14050

  • CAS :

    52514-63-3

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14060

Carbidopa - Impurity F

Ethyl (2S)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoate

  • Catalogue No.:PA 30 14060

  • CAS :

    1458640-32-8

  • Molecular Formula : C12H18N2O4

  • Molecular Weight : 254.28

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14080

Carbidopa - Impurity H

(2S)-2-Hydrazino-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PA 30 14080

  • CAS :

    1361017-74-4

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14090

Carbidopa - Impurity I

(2S)-3-(3-Bromo-4,5-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic Acid

  • Catalogue No.:PA 30 14090

  • CAS :

    1246819-09-9

  • Molecular Formula : C10H13BrN2O4

  • Molecular Weight : 305.13

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14100

Carbidopa - Impurity J

2-Bromo (S)-Carbidopa

  • Catalogue No.:PA 30 14100

  • CAS :

    43197-33-7

  • Molecular Formula : C10H13BrN2O4

  • Molecular Weight : 305.13

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14510

Carbidopa - Impurity G

3',4'-Dihydroxyphenylacetone

  • Catalogue No.:PA 30 14510

  • CAS :

    2503-44-8

  • Molecular Formula : C9H10O3

  • Molecular Weight : 166.17

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14520

3-(3,4-Dihydroxyphenyl)-2-methylpropanoic Acid

3-(3,4-Dihydroxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PA 30 14520

  • CAS :

    53832-94-3

  • Molecular Formula : C10H12O4

  • Molecular Weight : 196.2

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14530

2-Bromo Carbidopa

2-Bromo Carbidopa

  • Catalogue No.:PA 30 14530

  • CAS :

    1246817-47-9

  • Molecular Formula : C10H13BrN2O4

  • Molecular Weight : 305.13

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14540

4-O-Methylcarbidopa

4-O-Methylcarbidopa

  • Catalogue No.:PA 30 14540

  • CAS :

    2470439-16-6

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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Drug Reference Standards & Impurity Synthesis in India
PA STI 017491

Carbidopa-d3

Carbidopa-d3

  • Catalogue No.:PA STI 017491

  • CAS :

    1276732-89-8

  • Molecular Formula : C10H11D3N2O4

  • Molecular Weight : 229.25

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Drug Reference Standards & Impurity Synthesis in India
PA STI 017492

(S)-(-)-Carbidopa-d3 Monohydrate

(S)-(-)-Carbidopa-d3 Monohydrate

  • Catalogue No.:PA STI 017492

  • CAS :

    NA

  • Molecular Formula : C10H13D3N2O5

  • Molecular Weight : 247.26

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Drug Reference Standards & Impurity Synthesis in India
PA STI 017500

D,L-Carbidopa-d5

D,L-Carbidopa-d5

  • Catalogue No.:PA STI 017500

  • CAS :

    1185134-76-2

  • Molecular Formula : C10H9D5N2O4

  • Molecular Weight : 231.26

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Drug Reference Standards & Impurity Synthesis in India
PA STI 017530

(S)-(-)-Carbidopa-d5

(S)-(-)-Carbidopa-d5

  • Catalogue No.:PA STI 017530

  • CAS :

    1426174-03-9

  • Molecular Formula : C10H9D5N2O4

  • Molecular Weight : 231.26

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Drug Reference Standards & Impurity Synthesis in India
PA STI 017540

R-(+)-Carbidopa-d5

R-(+)-Carbidopa-d5

  • Catalogue No.:PA STI 017540

  • CAS :

    NA

  • Molecular Formula : C10H9D5N2O4

  • Molecular Weight : 231.13

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Drug Reference Standards & Impurity Synthesis in India
PA STI 060910

3-O-Methyl Carbidopa-d5

3-O-Methyl Carbidopa-d5

  • Catalogue No.:PA STI 060910

  • CAS :

    1794810-91-5

  • Molecular Formula : C11H11D5N2O4

  • Molecular Weight : 245.29

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Drug Reference Standards & Impurity Synthesis in India
PA USP1095506

Carbidopa (1095506)

Carbidopa (1095506)

  • Catalogue No.:PA USP1095506

  • CAS :

    38821-49-7

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP60RB

carbidopa (60RB)

carbidopa (60RB)

  • Catalogue No.:PA BP60RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPC0460000

Carbidopa (C0460000)

Carbidopa (C0460000)

  • Catalogue No.:PA EPC0460000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA ICRS2132

Carbidopa (ICRS2132)

Carbidopa (ICRS2132)

  • Catalogue No.:PA ICRS2132

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1095517

Carbidopa Related Compound A (3-O-Methylcarbidopa) (1095517)

Carbidopa Related Compound A (3-O-Methylcarbidopa) (1095517)

  • Catalogue No.:PA USP1095517

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001713

Carbidopa for system suitability (Y0001713)

Carbidopa for system suitability (Y0001713)

  • Catalogue No.:PA EPY0001713

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001716

Carbidopa impurity mixture (Y0001716)

Carbidopa impurity mixture (Y0001716)

  • Catalogue No.:PA EPY0001716

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA JP0033

Carbidopa (JP 0033)

Carbidopa (JP 0033)

  • Catalogue No.:PA JP0033

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 127 12

Carbidopa (IPRS/127/12)-from IPC

Carbidopa (IPRS/127/12)-from IPC

  • Catalogue No.:PA IPIPRS 127 12

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14550

(S)-3-(3,4-Dimethoxyphenyl)-2-hydrazineyl-2-methylpropanoic Acid

(S)-3-(3,4-Dimethoxyphenyl)-2-hydrazineyl-2-methylpropanoic Acid

  • Catalogue No.:PA 30 14550

  • CAS :

    28860-96-0

  • Molecular Formula : C12H18N2O4

  • Molecular Weight : 254.29

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14560

N-(Aminocarbonyl)-3-methoxy-O-α-dimethyl-L-tyrosine

N-(Aminocarbonyl)-3-methoxy-O-α-dimethyl-L-tyrosine

  • Catalogue No.:PA 30 14560

  • CAS :

    28861-00-9

  • Molecular Formula : C13H18N2O5

  • Molecular Weight : 282.3

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Drug Reference Standards & Impurity Synthesis in India
PA 30 14570

Carbidopa

Carbidopa

  • Catalogue No.:PA 30 14570

  • CAS :

    28860-95-9

  • Molecular Formula : C10H14N2O4

  • Molecular Weight : 226.23

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PA 30 14580

(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile Hydrochloride

(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile Hydrochloride

  • Catalogue No.:PA 30 14580

  • CAS :

    2544-13-0

  • Molecular Formula : C12H17ClN2O2

  • Molecular Weight : 256.73

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037010

Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037010

  • CAS :

    132774-01-7

  • Molecular Formula : C16H23NO6

  • Molecular Weight : 325.36

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PAI 03 037020

Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-((tert-butoxycarbonyl)amino)-2-methylpropanoate

Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-((tert-butoxycarbonyl)amino)-2-methylpropanoate

  • Catalogue No.:PAI 03 037020

  • CAS :

    NA

  • Molecular Formula : C16H22BrNO6

  • Molecular Weight : 404.26

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PAI 03 037030

Methyl (S)-2-amino-3-(3-bromo-4,5-dihydroxyphenyl)-2-methylpropanoate

Methyl (S)-2-amino-3-(3-bromo-4,5-dihydroxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037030

  • CAS :

    NA

  • Molecular Formula : C11H14BrNO4

  • Molecular Weight : 304.14

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PAI 03 037040

1-Oxa-2-azaspiro[2.5]octane

1-Oxa-2-azaspiro[2.5]octane

  • Catalogue No.:PAI 03 037040

  • CAS :

    185-80-8

  • Molecular Formula : C6H11NO

  • Molecular Weight : 113.16

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037050

Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-(2-cyclohexylidenehydrazinyl)-2-methylpropanoate

Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-(2-cyclohexylidenehydrazinyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037050

  • CAS :

    NA

  • Molecular Formula : C17H23BrN2O4

  • Molecular Weight : 399.29

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088312

(S)-(-)-Carbidopa-d3 H2O (ring-d3)

(S)-(-)-Carbidopa-d3 H2O (ring-d3)

  • Catalogue No.:PA STI 088312

  • CAS :

    1276197-58-0

  • Molecular Formula : C10H13D3N2O5

  • Molecular Weight : 247.27

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141000

1-(2-Bromo-4-hydroxy-5-methoxyphenyl)-2-propanone

1-(2-Bromo-4-hydroxy-5-methoxyphenyl)-2-propanone

  • Catalogue No.:PA 30 0141000

  • CAS :

    1017083-10-1

  • Molecular Formula : C10H11BrO3

  • Molecular Weight : 259.10

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PAI 03 037051

2-Hydrazino-α-(4-hydroxy-3-methoxybenzyl)propionitrile

2-Hydrazino-α-(4-hydroxy-3-methoxybenzyl)propionitrile

  • Catalogue No.:PAI 03 037051

  • CAS :

    40248-56-4

  • Molecular Formula : C11H15N3O2

  • Molecular Weight : 221.26

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PA 30 0141001

(R)-Carbidopa Methyl Ester N-Cyclohexylidene

(R)-Carbidopa Methyl Ester N-Cyclohexylidene

  • Catalogue No.:PA 30 0141001

  • CAS :

    NA

  • Molecular Formula : C17H24N2O4

  • Molecular Weight : 320.39

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PA 30 0141002

D,L-Carbidopa

D,L-Carbidopa

  • Catalogue No.:PA 30 0141002

  • CAS :

    302-53-4

  • Molecular Formula : C10H14N2O4

  • Molecular Weight : 226.23

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PA 30 0141003

3-(3-bromo-4,5-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid

3-(3-bromo-4,5-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid

  • Catalogue No.:PA 30 0141003

  • CAS :

    1246819-09-9

  • Molecular Formula : C10H13BrN2O4

  • Molecular Weight : 305.13

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PA 30 0141004

2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile

2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile

  • Catalogue No.:PA 30 0141004

  • CAS :

    2543-46-6

  • Molecular Formula : C12H16N2O2

  • Molecular Weight : 220.27

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PA 30 0141005

(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile

(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile

  • Catalogue No.:PA 30 0141005

  • CAS :

    54716-90-4

  • Molecular Formula : C12H16N2O2

  • Molecular Weight : 220.27

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PA 30 0141006

Methyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate

Methyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate

  • Catalogue No.:PA 30 0141006

  • CAS :

    91431-01-5

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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PA 30 0141007

Ethyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate hydrochloride

Ethyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate hydrochloride

  • Catalogue No.:PA 30 0141007

  • CAS :

    96115-88-7

  • Molecular Formula : C12H19ClN2O4

  • Molecular Weight : 290.74

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PA 30 0141009

R-(+)-Carbidopa

R-(+)-Carbidopa

  • Catalogue No.:PA 30 0141009

  • CAS :

    28875-92-5

  • Molecular Formula : C10H14N2O4

  • Molecular Weight : 226.23

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PA 30 0140030

Carbidopa - Impurity C

3-O-Methylcarbidopa (S - Isomer)

  • Catalogue No.:PA 30 0140030

  • CAS :

    84488-77-7

  • Molecular Formula : C11H16N2O4

  • Molecular Weight : 240.26

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PA 30 0141010

(S)-3-(3,4-Dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazinyl)propanoic Acid

(S)-3-(3,4-Dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazinyl)propanoic Acid

  • Catalogue No.:PA 30 0141010

  • CAS :

    NA

  • Molecular Formula : C10H13N3O5

  • Molecular Weight : 255.23

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PAI 03 037052

(E)-1,2-Dimethoxy-4-(2-nitroprop-1-en-1-yl)benzene

(E)-1,2-Dimethoxy-4-(2-nitroprop-1-en-1-yl)benzene

  • Catalogue No.:PAI 03 037052

  • CAS :

    37629-53-1

  • Molecular Formula : C11H13NO4

  • Molecular Weight : 223.23

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PAI 03 037053

2-Hydrazinyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanamide

2-Hydrazinyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanamide

  • Catalogue No.:PAI 03 037053

  • CAS :

    NA

  • Molecular Formula : C11H17N3O3

  • Molecular Weight : 239.28

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PAI 03 037054

Methyl (E)-2-acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylate

Methyl (E)-2-acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylate

  • Catalogue No.:PAI 03 037054

  • CAS :

    NA

  • Molecular Formula : C15H17NO6

  • Molecular Weight : 307.3

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PAI 03 037055

Methyl 3-(4-hydroxy-3-methoxyphenyl)-2-oxopropanoate

Methyl 3-(4-hydroxy-3-methoxyphenyl)-2-oxopropanoate

  • Catalogue No.:PAI 03 037055

  • CAS :

    NA

  • Molecular Formula : C11H12O5

  • Molecular Weight : 224.21

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PAI 03 037056

tert-Butyl (Z)-2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-1-oxopropan-2-ylidene)hydrazine-1-carboxylate

tert-Butyl (Z)-2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-1-oxopropan-2-ylidene)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037056

  • CAS :

    NA

  • Molecular Formula : C16H22N2O6

  • Molecular Weight : 338.36

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PAI 03 037057

tert-Butyl 2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl 2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037057

  • CAS :

    NA

  • Molecular Formula : C17H26N2O6

  • Molecular Weight : 354.4

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PAI 03 037058

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PAI 03 037058

  • CAS :

    NA

  • Molecular Formula : C16H24N2O6

  • Molecular Weight : 340.38

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PAI 03 037059

(E)-2-Acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylic Acid

(E)-2-Acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylic Acid

  • Catalogue No.:PAI 03 037059

  • CAS :

    106234-73-5

  • Molecular Formula : C14H15NO6

  • Molecular Weight : 293.28

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PAI 03 037060

3-(4-Hydroxy-3-methoxyphenyl)-2-oxopropanoic Acid

3-(4-Hydroxy-3-methoxyphenyl)-2-oxopropanoic Acid

  • Catalogue No.:PAI 03 037060

  • CAS :

    1081-71-6

  • Molecular Formula : C10H10O5

  • Molecular Weight : 210.19

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PAI 03 037061

Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoate

Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoate

  • Catalogue No.:PAI 03 037061

  • CAS :

    154051-95-3

  • Molecular Formula : C12H17NO4

  • Molecular Weight : 239.27

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PAI 03 037062

Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)propanoate

Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)propanoate

  • Catalogue No.:PAI 03 037062

  • CAS :

    NA

  • Molecular Formula : C19H21NO4

  • Molecular Weight : 327.38

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PAI 03 037063

Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037063

  • CAS :

    NA

  • Molecular Formula : C20H23NO4

  • Molecular Weight : 341.41

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PAI 03 037064

2-Amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid

2-Amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PAI 03 037064

  • CAS :

    15073-80-0

  • Molecular Formula : C11H15NO4

  • Molecular Weight : 225.24

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PAI 03 037065

3-(4-Hydroxy-3-methoxyphenyl)-2-methyl-2-ureidopropanoic Acid

3-(4-Hydroxy-3-methoxyphenyl)-2-methyl-2-ureidopropanoic Acid

  • Catalogue No.:PAI 03 037065

  • CAS :

    91558-96-2

  • Molecular Formula : C12H16N2O5

  • Molecular Weight : 268.27

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PAI 03 037066

(Z)-2-(2-(Tert-butoxycarbonyl)hydrazono)-3-(4-hydroxy-3-methoxyphenyl)propanoic Acid

(Z)-2-(2-(Tert-butoxycarbonyl)hydrazono)-3-(4-hydroxy-3-methoxyphenyl)propanoic Acid

  • Catalogue No.:PAI 03 037066

  • CAS :

    NA

  • Molecular Formula : C15H20N2O6

  • Molecular Weight : 324.33

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PAI 03 037067

Vanillyl Alcohol

Vanillyl Alcohol

  • Catalogue No.:PAI 03 037067

  • CAS :

    498-00-0

  • Molecular Formula : C8H10O3

  • Molecular Weight : 154.17

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037068

4-(Bromomethyl)-2-methoxyphenol

4-(Bromomethyl)-2-methoxyphenol

  • Catalogue No.:PAI 03 037068

  • CAS :

    79440-33-8

  • Molecular Formula : C8H9BrO2

  • Molecular Weight : 217.06

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037069

Ethyl (S,E)-2-(benzylideneamino)propanoate

Ethyl (S,E)-2-(benzylideneamino)propanoate

  • Catalogue No.:PAI 03 037069

  • CAS :

    142128-23-2

  • Molecular Formula : C12H15NO2

  • Molecular Weight : 205.26

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037070

Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037070

  • CAS :

    2352958-14-4

  • Molecular Formula : C13H19NO4

  • Molecular Weight : 253.3

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037071

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoic Acid

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PAI 03 037071

  • CAS :

    709656-66-6

  • Molecular Formula : C15H22N2O6

  • Molecular Weight : 326.35

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037072

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid

2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid

  • Catalogue No.:PAI 03 037072

  • CAS :

    NA

  • Molecular Formula : C16H24N2O6

  • Molecular Weight : 340.38

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037073

tert-Butyl 2-(3-(3-hydroxy-4-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl 2-(3-(3-hydroxy-4-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037073

  • CAS :

    NA

  • Molecular Formula : C17H26N2O6

  • Molecular Weight : 354.4

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037074

tert-Butyl 2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl 2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037074

  • CAS :

    709656-73-5

  • Molecular Formula : C16H24N2O6

  • Molecular Weight : 340.38

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141011

Carbidopa Imine Ester Impurity

Carbidopa Imine Ester Impurity

  • Catalogue No.:PA 30 0141011

  • CAS :

    1402053-59-1

  • Molecular Formula : C14H20N2O4

  • Molecular Weight : 280.32

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141012

rac-Carbidopa Ethyl Ester

rac-Carbidopa Ethyl Ester

  • Catalogue No.:PA 30 0141012

  • CAS :

    91908-71-3

  • Molecular Formula : C12H18N2O4

  • Molecular Weight : 254.29

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037075

tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-ethoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-ethoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037075

  • CAS :

    NA

  • Molecular Formula : C17H26N2O6

  • Molecular Weight : 354.4

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037076

tert-Butyl (S)-2-(1-ethoxy-3-(4-hydroxy-3-methoxyphenyl)-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl (S)-2-(1-ethoxy-3-(4-hydroxy-3-methoxyphenyl)-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037076

  • CAS :

    NA

  • Molecular Formula : C18H28N2O6

  • Molecular Weight : 368.43

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037077

Ethyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

Ethyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037077

  • CAS :

    NA

  • Molecular Formula : C13H20N2O4

  • Molecular Weight : 268.31

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037078

tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037078

  • CAS :

    2438159-28-3

  • Molecular Formula : C16H24N2O6

  • Molecular Weight : 340.38

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037079

tert-Butyl (S)-2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

tert-Butyl (S)-2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate

  • Catalogue No.:PAI 03 037079

  • CAS :

    NA

  • Molecular Formula : C17H26N2O6

  • Molecular Weight : 354.4

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 037080

Methyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

Methyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate

  • Catalogue No.:PAI 03 037080

  • CAS :

    NA

  • Molecular Formula : C12H18N2O4

  • Molecular Weight : 254.29

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141013

Methyl 3-(3,4-dihydroxyphenyl)-2-methylpropanoate

Methyl 3-(3,4-dihydroxyphenyl)-2-methylpropanoate

  • Catalogue No.:PA 30 0141013

  • CAS :

    2104012-68-0

  • Molecular Formula : C11H14O4

  • Molecular Weight : 210.23

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141014

N-Carbamoyl-N-(3,4-dimethoxybenzyl)-L-alanine

N-Carbamoyl-N-(3,4-dimethoxybenzyl)-L-alanine

  • Catalogue No.:PA 30 0141014

  • CAS :

    NA

  • Molecular Formula : C13H18N2O5

  • Molecular Weight : 282.3

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141015

(S)-3-(4-Hydroxy-3-methoxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

(S)-3-(4-Hydroxy-3-methoxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

  • Catalogue No.:PA 30 0141015

  • CAS :

    NA

  • Molecular Formula : C11H15N3O5

  • Molecular Weight : 269.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141016

Methyl (S)-2-(2-cyclohexylidene-1-nitrosohydrazineyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

Methyl (S)-2-(2-cyclohexylidene-1-nitrosohydrazineyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

  • Catalogue No.:PA 30 0141016

  • CAS :

    NA

  • Molecular Formula : C17H23N3O5

  • Molecular Weight : 349.39

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141017

Methyl (S)-3-(3,4-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoate

Methyl (S)-3-(3,4-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoate

  • Catalogue No.:PA 30 0141017

  • CAS :

    NA

  • Molecular Formula : C11H15N3O5

  • Molecular Weight : 269.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141018

Ethyl (S)-3-(3,4-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoate

Ethyl (S)-3-(3,4-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoate

  • Catalogue No.:PA 30 0141018

  • CAS :

    NA

  • Molecular Formula : C12H17N3O5

  • Molecular Weight : 283.28

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141019

(S)-3-(3-Hydroxy-4-methoxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

(S)-3-(3-Hydroxy-4-methoxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

  • Catalogue No.:PA 30 0141019

  • CAS :

    NA

  • Molecular Formula : C11H15N3O5

  • Molecular Weight : 269.26

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Drug Reference Standards & Impurity Synthesis in India
PA 30 0141020

(S)-3-(3-Bromo-4,5-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

(S)-3-(3-Bromo-4,5-dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazineyl)propanoic Acid

  • Catalogue No.:PA 30 0141020

  • CAS :

    NA

  • Molecular Formula : C10H12BrN3O5

  • Molecular Weight : 334.13

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Drug Reference Standards & Impurity Synthesis in India
PA STI 090025

Carbidopa-d6

Carbidopa-d6

  • Catalogue No.:PA STI 090025

  • CAS :

    2747914-00-5

  • Molecular Formula : C10H8D6N2O4

  • Molecular Weight : 232.27

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