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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:
28860-95-9
Molecular Weight:
226.23
NACRES:
NA.77
PubChem Substance ID:
24892402
UNSPSC Code:
12352202
EC Number:
249-271-9
MDL number:
MFCD00069231
Assay:
≥98% (TLC)
Form:
powder
Quality level:
200

Key Documents

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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

200

Gene Information

human ... DDC(1644)

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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.

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.

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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Certificates of Analysis (COA)

Lot/Batch Number
0000133058
0000133058
0000397928
0000397928
0000290557

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Levodopa with benserazide or carbidopa in Parkinson disease
Rinne UK and Molsa P
Neurology, 29(12), 1584-1589 (1979)
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)
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
S Kaakkola et al.
Journal of neurochemistry, 60(1), 137-144 (1993-01-01)
The effects of two new catechol-O-methyltransferase (COMT) inhibitors, OR-611 and Ro 40-7592, in combination with L-3,4-dihydroxyphenylalanine (L-dopa) with or without carbidopa on extracellular levels of dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), 3-O-methyldopa (3-OMD), and 5-hydroxyindoleacetic acid in rat
Hubert H Fernandez et al.
Parkinsonism & related disorders, 19(3), 339-345 (2013-01-05)
Levodopa-carbidopa intestinal gel (LCIG) delivered continuously via percutaneous endoscopic gastrojejunostomy (PEG-J) tube has been reported, mainly in small open-label studies, to significantly alleviate motor complications in Parkinson's disease (PD). A prospective open-label, 54-week, international study of LCIG is ongoing in
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