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
Carbidopa Monohydrate
Catalogue No.:PA 30 14000
CAS :
Molecular Formula : C10H16N2O5
Molecular Weight : 244.24
L-Methyldopa
Catalogue No.:PA 30 14010
Molecular Formula : C10H13NO4
Molecular Weight : 211.21
Methyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoate
Catalogue No.:PA 30 14020
Molecular Formula : C11H15NO4
Molecular Weight : 225.24
3',4'-Dihydroxyphenylacetone
Catalogue No.:PA 30 14510
Molecular Formula : C9H10O3
Molecular Weight : 166.17
3-O-Methyl Carbidopa (Mixture)
Catalogue No.:PA 30 14030
Molecular Formula : C11H16N2O4
Molecular Weight : 240.26
Cyclohexylidene Carbidopa Methyl Ester
Catalogue No.:PA 30 14040
Molecular Formula : C17H24N2O4
Molecular Weight : 320.38
(S)-Carbidopa Methyl Ester
Catalogue No.:PA 30 14050
Ethyl (2S)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoate
Catalogue No.:PA 30 14060
Molecular Formula : C12H18N2O4
Molecular Weight : 254.28
(2S)-2-Hydrazino-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PA 30 14080
(2S)-3-(3-Bromo-4,5-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic Acid
Catalogue No.:PA 30 14090
Molecular Formula : C10H13BrN2O4
Molecular Weight : 305.13
2-Bromo (S)-Carbidopa
Catalogue No.:PA 30 14100
3-(3,4-Dihydroxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PA 30 14520
Molecular Formula : C10H12O4
Molecular Weight : 196.2
2-Bromo Carbidopa
Catalogue No.:PA 30 14530
4-O-Methylcarbidopa
Catalogue No.:PA 30 14540
Carbidopa-d3
Catalogue No.:PA STI 017491
Molecular Formula : C10H11D3N2O4
Molecular Weight : 229.25
(S)-(-)-Carbidopa-d3 Monohydrate
Catalogue No.:PA STI 017492
Molecular Formula : C10H13D3N2O5
Molecular Weight : 247.26
D,L-Carbidopa-d5
Catalogue No.:PA STI 017500
Molecular Formula : C10H9D5N2O4
Molecular Weight : 231.26
(S)-(-)-Carbidopa-d5
Catalogue No.:PA STI 017530
R-(+)-Carbidopa-d5
Catalogue No.:PA STI 017540
Molecular Weight : 231.13
3-O-Methyl Carbidopa-d5
Catalogue No.:PA STI 060910
Molecular Formula : C11H11D5N2O4
Molecular Weight : 245.29
Carbidopa (1095506)
Catalogue No.:PA USP1095506
Molecular Formula : NA
Molecular Weight : NA
carbidopa (60RB)
Catalogue No.:PA BP60RB
Carbidopa (C0460000)
Catalogue No.:PA EPC0460000
Catalogue No.:PA ICRS2132
Molecular Formula :
Carbidopa Related Compound A (3-O-Methylcarbidopa) (1095517)
Catalogue No.:PA USP1095517
Carbidopa for system suitability (Y0001713)
Catalogue No.:PA EPY0001713
Carbidopa impurity mixture (Y0001716)
Catalogue No.:PA EPY0001716
Carbidopa (JP 0033)
Catalogue No.:PA JP0033
Catalogue No.:PA IPIPRS 127 12
3-(3,4-Dimethoxyphenyl)-2-hydrazinyl-2-methylpropanoic Acid
Catalogue No.:PA 30 14550
Molecular Weight : 254.29
N-(Aminocarbonyl)-3-methoxy-O-α-dimethyl-L-tyrosine
Catalogue No.:PA 30 14560
Molecular Formula : C13H18N2O5
Molecular Weight : 282.3
Carbidopa
Catalogue No.:PA 30 14570
Molecular Formula : C10H14N2O4
Molecular Weight : 226.23
(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile Hydrochloride
Catalogue No.:PA 30 14580
Molecular Formula : C12H17ClN2O2
Molecular Weight : 256.73
Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037010
Molecular Formula : C16H23NO6
Molecular Weight : 325.36
Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-((tert-butoxycarbonyl)amino)-2-methylpropanoate
Catalogue No.:PAI 03 037020
Molecular Formula : C16H22BrNO6
Molecular Weight : 404.26
Methyl (S)-2-amino-3-(3-bromo-4,5-dihydroxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037030
Molecular Formula : C11H14BrNO4
Molecular Weight : 304.14
1-Oxa-2-azaspiro[2.5]octane
Catalogue No.:PAI 03 037040
Molecular Formula : C6H11NO
Molecular Weight : 113.16
Methyl (S)-3-(3-bromo-4,5-dihydroxyphenyl)-2-(2-cyclohexylidenehydrazinyl)-2-methylpropanoate
Catalogue No.:PAI 03 037050
Molecular Formula : C17H23BrN2O4
Molecular Weight : 399.29
(S)-(-)-Carbidopa-d3 H2O (ring-d3)
Catalogue No.:PA STI 088312
Molecular Weight : 247.27
1-(2-Bromo-4-hydroxy-5-methoxyphenyl)-2-propanone
Catalogue No.:PA 30 0141000
Molecular Formula : C10H11BrO3
Molecular Weight : 259.10
2-Hydrazino-α-(4-hydroxy-3-methoxybenzyl)propionitrile
Catalogue No.:PAI 03 037051
Molecular Formula : C11H15N3O2
Molecular Weight : 221.26
(R)-Carbidopa Methyl Ester N-Cyclohexylidene
Catalogue No.:PA 30 0141001
Molecular Weight : 320.39
D,L-Carbidopa
Catalogue No.:PA 30 0141002
3-(3-bromo-4,5-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid
Catalogue No.:PA 30 0141003
2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile
Catalogue No.:PA 30 0141004
Molecular Formula : C12H16N2O2
Molecular Weight : 220.27
(S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methylpropanenitrile
Catalogue No.:PA 30 0141005
Methyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate
Catalogue No.:PA 30 0141006
Ethyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate hydrochloride
Catalogue No.:PA 30 0141007
Molecular Formula : C12H19ClN2O4
Molecular Weight : 290.74
R-(+)-Carbidopa
Catalogue No.:PA 30 0141009
3-O-Methylcarbidopa (S - Isomer)
Catalogue No.:PA 30 0140030
(S)-3-(3,4-Dihydroxyphenyl)-2-methyl-2-(1-nitrosohydrazinyl)propanoic Acid
Catalogue No.:PA 30 0141010
Molecular Formula : C10H13N3O5
Molecular Weight : 255.23
(E)-1,2-Dimethoxy-4-(2-nitroprop-1-en-1-yl)benzene
Catalogue No.:PAI 03 037052
Molecular Formula : C11H13NO4
Molecular Weight : 223.23
2-Hydrazinyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanamide
Catalogue No.:PAI 03 037053
Molecular Formula : C11H17N3O3
Molecular Weight : 239.28
Methyl (E)-2-acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylate
Catalogue No.:PAI 03 037054
Molecular Formula : C15H17NO6
Molecular Weight : 307.3
Methyl 3-(4-hydroxy-3-methoxyphenyl)-2-oxopropanoate
Catalogue No.:PAI 03 037055
Molecular Formula : C11H12O5
Molecular Weight : 224.21
tert-Butyl (Z)-2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-1-oxopropan-2-ylidene)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037056
Molecular Formula : C16H22N2O6
Molecular Weight : 338.36
tert-Butyl 2-(3-(4-hydroxy-3-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037057
Molecular Formula : C17H26N2O6
Molecular Weight : 354.4
2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PAI 03 037058
Molecular Formula : C16H24N2O6
Molecular Weight : 340.38
(E)-2-Acetamido-3-(4-acetoxy-3-methoxyphenyl)acrylic Acid
Catalogue No.:PAI 03 037059
Molecular Formula : C14H15NO6
Molecular Weight : 293.28
3-(4-Hydroxy-3-methoxyphenyl)-2-oxopropanoic Acid
Catalogue No.:PAI 03 037060
Molecular Formula : C10H10O5
Molecular Weight : 210.19
Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoate
Catalogue No.:PAI 03 037061
Molecular Formula : C12H17NO4
Molecular Weight : 239.27
Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)propanoate
Catalogue No.:PAI 03 037062
Molecular Formula : C19H21NO4
Molecular Weight : 327.38
Ethyl (E)-2-(benzylideneamino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037063
Molecular Formula : C20H23NO4
Molecular Weight : 341.41
2-Amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PAI 03 037064
3-(4-Hydroxy-3-methoxyphenyl)-2-methyl-2-ureidopropanoic Acid
Catalogue No.:PAI 03 037065
Molecular Formula : C12H16N2O5
Molecular Weight : 268.27
(Z)-2-(2-(Tert-butoxycarbonyl)hydrazono)-3-(4-hydroxy-3-methoxyphenyl)propanoic Acid
Catalogue No.:PAI 03 037066
Molecular Formula : C15H20N2O6
Molecular Weight : 324.33
Vanillyl Alcohol
Catalogue No.:PAI 03 037067
Molecular Formula : C8H10O3
Molecular Weight : 154.17
4-(Bromomethyl)-2-methoxyphenol
Catalogue No.:PAI 03 037068
Molecular Formula : C8H9BrO2
Molecular Weight : 217.06
Ethyl (S,E)-2-(benzylideneamino)propanoate
Catalogue No.:PAI 03 037069
Molecular Formula : C12H15NO2
Molecular Weight : 205.26
Ethyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037070
Molecular Formula : C13H19NO4
Molecular Weight : 253.3
2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PAI 03 037071
Molecular Formula : C15H22N2O6
Molecular Weight : 326.35
2-(2-(tert-Butoxycarbonyl)hydrazinyl)-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid
Catalogue No.:PAI 03 037072
tert-Butyl 2-(3-(3-hydroxy-4-methoxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037073
tert-Butyl 2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037074
Carbidopa Imine Ester Impurity
Catalogue No.:PA 30 0141011
Molecular Formula : C14H20N2O4
Molecular Weight : 280.32
rac-Carbidopa Ethyl Ester
Catalogue No.:PA 30 0141012
tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-ethoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037075
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
Molecular Formula : C18H28N2O6
Molecular Weight : 368.43
Ethyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037077
Molecular Formula : C13H20N2O4
Molecular Weight : 268.31
tert-Butyl (S)-2-(3-(3,4-dihydroxyphenyl)-1-methoxy-2-methyl-1-oxopropan-2-yl)hydrazine-1-carboxylate
Catalogue No.:PAI 03 037078
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
Methyl (S)-2-hydrazineyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate
Catalogue No.:PAI 03 037080
Methyl 3-(3,4-dihydroxyphenyl)-2-methylpropanoate
Catalogue No.:PA 30 0141013
Molecular Formula : C11H14O4
Molecular Weight : 210.23
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