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Merck
CN

1095506

USP

Carbidopa

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

(S)-3-(3,4-Dihydroxyphenyl)-2-hydrazino-2-methylpropionic acid monohydrate

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About This Item

Empirical Formula (Hill Notation):
C10H14N2O4 · H2O
CAS Number:
38821-49-7
Molecular Weight:
244.24
NACRES:
NA.24
PubChem Substance ID:
329749233
UNSPSC Code:
41116107
MDL number:
MFCD00889211

Key Documents

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Product Name

Carbidopa, United States Pharmacopeia (USP) Reference Standard

InChI

1S/C10H14N2O4.H2O/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);1H2/t10-;/m0./s1

SMILES string

O.C[C@@](Cc1ccc(O)c(O)c1)(NN)C(O)=O

InChI key

QTAOMKOIBXZKND-PPHPATTJSA-N

grade

pharmaceutical primary standard

API family

carbidopa

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

Gene Information

human ... DDC(1644)

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Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Application

Carbidopa USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Carbidopa and Levodopa Extended-Release Tablets
  • Carbidopa and Levodopa Orally Disintegrating Tablets
  • Carbidopa and Levodopa Tablets

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

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Q. Alan Xu, Timothy L. Madden
Analytical Methods for Therapeutic Drug Monitoring and Toxicology, 80-80 (2011)
Mohseni Mehran S M et al.
Journal of clinical and diagnostic research : JCDR, 7(6), 1004-1007 (2013-08-02)
According to many studies, sprouted fava beans are a rich source of levo-dihydroxy phenylalanine (L-dopa) the precursor of dopamine, and they are now being investigated for use in the management of Parkinson's disease. The addition of Carbidopa (C-dopa) can reduce
J T Hutton et al.
Neurology, 42(1 Suppl 1), 51-56 (1992-01-01)
Parkinson's disease patients treated chronically with levodopa often develop fluctuations in motor response. Motor fluctuations can be attributed in part to oscillating plasma levodopa concentrations. A controlled-release formulation containing 200 mg of levodopa and 50 mg of carbidopa provides superior
A Castro et al.
Neurologia (Barcelona, Spain), 20(4), 180-188 (2005-05-14)
Levodopa remains the mainstay treatment for Parkinson's disease (PD). Chronic treatment is associated with motor complications (MC) that marred the clinical benefit of levodopa. These problems and experimental data in cell cultures indicating a neurotoxic effect of levodopa have led
Robert A Hauser
Expert review of neurotherapeutics, 12(2), 133-140 (2012-02-01)
Levodopa (LD) remains the most effective medication to treat Parkinson's disease (PD). However, most patients develop motor fluctuations and dyskinesias with long-term LD use. It is thought that these response complications are due, at least in part, to LD's short
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