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Merck

C1335

S-(−)-Carbidopa

≥98% (TLC), powder

Synonym(s):

(S)-3-(3,4-Dihydroxyphenyl)-2-hydrazino-2-methylpropanoic acid, S-(−)-α-Hydrazino-3,4-dihydroxy-2-methylbenzenepropanoic acid

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About This Item

Empirical Formula (Hill Notation):
C10H14N2O4
CAS Number:
Molecular Weight:
226.23
NACRES:
NA.77
PubChem Substance ID:
UNSPSC Code:
12352202
EC Number:
249-271-9
MDL number:
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Product Name

S-(−)-Carbidopa, ≥98% (TLC), powder

InChI key

TZFNLOMSOLWIDK-JTQLQIEISA-N

InChI

1S/C10H14N2O4/c1-10(12-11,9(15)16)5-6-2-3-7(13)8(14)4-6/h2-4,12-14H,5,11H2,1H3,(H,15,16)/t10-/m0/s1

SMILES string

CC(Cc1ccc(O)c(O)c1)(NN)C(O)=O

assay

≥98% (TLC)

form

powder

solubility

methanol and 1 drop HCl: 4.90-5.10 mg/mL, clear, colorless to faintly yellow

storage temp.

−20°C

Quality Level

Gene Information

human ... DDC(1644)

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Biochem/physiol Actions

Peripheral inhibitor of L-aromatic amino acid decarboxylase.
Peripheral inhibitor of L-aromatic amino acid decarboxylase. When co-administered with L-DOPA, it prevents extra-CNS conversion to dopamine, thereby increasing CNS concentrations of effective compounds. Selectively cytotoxic to human pulmonary carcinoid and small cell lung carcinoma cells by increasing H2O2 in these cell lines, which are sensitive to reactive oxygen species.

General description

Carbidopa is used for treating restless legs (RL) syndrome and periodic leg movements in sleep (PLMS). Carbidopa along with levodopa is used to treat Parkinson′s disease.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Pergolide and carbidopa/levodopa treatment of the restless legs syndrome and periodic leg movements in sleep in a consecutive series of patients
Earley CJ and Allen RP
Sleep, 19(10), 801-810 (1996)
Levodopa with benserazide or carbidopa in Parkinson disease
Rinne UK and Molsa P
Neurology, 29(12), 1584-1589 (1979)
Extended-release carbidopa-levodopa in Parkinson's disease.
Olivier Rascol
The Lancet. Neurology, 12(4), 325-326 (2013-03-15)
Venkatraman Junnotula et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 926, 47-53 (2013-04-04)
A simple, selective, and sensitive quantitative method has been developed for the simultaneous determination of levodopa and carbidopa in rat and monkey plasma by protein precipitation using acetonitrile containing the derivatizing reagent, flourescamine. Derivatized products of levodopa and carbidopa were
V K Datieva et al.
Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 112(10 Pt 2), 13-19 (2012-12-20)
The objective of this multicenter observational study "Optimization levodopa therapy for patients with Parkinson's disease" (OPTIMA) was to evaluate the current practice of prescribing levodopa to patients with Parkinson's disease (PD) by general practitioners and specialists in the treatment of

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