Carbidopa EP Impurity D

Name: Carbidopa EP Impurity D
Brand: Vaqora Chemicals
SKU: VQ-022000

About Carbidopa EP Impurity D

Listed under CAS 934371-48-9, Carbidopa EP Impurity D is a pharmacopeial impurity of Carbidopa available from Vaqora Chemicals. Its molecular formula is C17H24N2O4 and its molecular weight is 320.4 g/mol. Its systematic (IUPAC) name is methyl (2S)-2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate. It is also known as (S)-Carbidopa Methyl Ester N-Cyclohexylidene or Carbidopa - Impurity D.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Carbidopa impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Carbidopa EP Impurity D in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Carbidopa

View every impurity, metabolite and intermediate we list for Carbidopa.

Carbidopa impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Carbidopa EP Impurity D
Catalogue No.	VQ-022000
CAS Number	934371-48-9
IUPAC name	methyl (2S)-2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate
Molecular formula	C₁₇H₂₄N₂O₄
Molecular weight	320.4 g/mol
Exact mass	320.1736
Grade	Reference Standard
HSN code	38229090
InChIKey	VBGRIWCNLNENAX-KRWDZBQOSA-N
SMILES	C[C@](CC1=CC(=C(C=C1)O)O)(C(=O)OC)NN=C2CCCCC2
PubChem CID	23726384

Physical properties
Physical form	Solid
LogP (XLogP3)	2.9
H-bond donors / acceptors	3 / 6
TPSA	91.2 Å²
Synonyms	(S)-Carbidopa Methyl Ester N-Cyclohexylidene, Carbidopa - Impurity D, Cyclohexylidene Carbidopa Methyl Ester, N-Cyclohexylidene Carbidopa Methyl Ester, Carbidopa methyl ester N-cyclohexylidene, Methyl (2S)-2-(2-cyclohexylidenehydrazino)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate, alpha-(2-Cyclohexylidenehydrazinyl)-carbidopa methyl, Carbidopa impurity D, (S)-Methyl 2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate, Methyl (S)-2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate, Methyl (2S)-2-(2-Cyclohexylidenehydrazino)-3-(3,4-dihydroxyphenyl)-2-methyl-propanoate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302+H312+H332Harmful if swallowed, in contact with skin or if inhaled
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P321, P330, P332 + P317, P337 + P317, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Carbidopa EP Impurity D?

The CAS Registry Number of Carbidopa EP Impurity D is 934371-48-9. It is also known as (S)-Carbidopa Methyl Ester N-Cyclohexylidene, Carbidopa - Impurity D, Cyclohexylidene Carbidopa Methyl Ester.

What is the molecular formula and molecular weight of Carbidopa EP Impurity D?

Carbidopa EP Impurity D has the molecular formula C17H24N2O4 and a molecular weight of 320.4 g/mol. Its IUPAC name is methyl (2S)-2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate.

What is Carbidopa EP Impurity D used for?

Carbidopa EP Impurity D is supplied as a characterised reference material related to Carbidopa. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Carbidopa EP Impurity D can I order?

We supply Carbidopa EP Impurity D in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Carbidopa EP Impurity D?

Yes. Every lot of Carbidopa EP Impurity D is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Carbidopa EP Impurity D be shipped internationally?

Yes. Carbidopa EP Impurity D is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.