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Pharmacopeial Impurities (EP / USP / BP)

Carbidopa EP Impurity A

Reference StandardAvailable on request

Carbidopa EP Impurity A (CAS 555-30-6) supplier Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-021039.

Pack sizes
Carbidopa EP Impurity A chemical structure
CAS number555-30-6
FormulaC10H13NO4
Molar mass211.21 g/mol
Physical formSolid
HS code38229090
InChIKeyCJCSPKMFHVPWAR-JTQLQIEISA-N
IUPAC name(2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoic acid

About Carbidopa EP Impurity A

Carbidopa EP Impurity A is supplied by Zemixal as a characterised reference material for Carbidopa analysis. Key data (Reference Standard): CAS 555-30-6, formula C10H13NO4 and molar mass 211.21 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H361. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Carbidopa

See every impurity, metabolite and related compound we list for this API.

Carbidopa standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Carbidopa EP Impurity A
Product nameCarbidopa EP Impurity A
Catalogue numberZX-021039
CAS number555-30-6
IUPAC name(2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoic acid
Molecular formulaC10H13NO4
Molar mass211.21 g/mol
Exact mass211.0845
GradeReference Standard
Physical formSolid
XLogP3-1.9
H-bond donors / acceptors4 / 5
Topological polar surface area104 Ų
HS code38229090
InChIKeyCJCSPKMFHVPWAR-JTQLQIEISA-N
SMILESC[C@](CC1=CC(=C(C=C1)O)O)(C(=O)O)N
PubChem CID38853
SynonymsMethyldopa, Carbidopa - Impurity A, Presolisin, Alpha medopa, l-alpha-Methyldopa, Methyldopa anhydrous, Methoplain, Methyl dopa, alpha-Methyl dopa, Presinol, alpha-Methyl-L-dopa, L-Methyl Dopa

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Warning

  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P280, P318, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Carbidopa EP Impurity A
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Carbidopa EP Impurity A

Which CAS number identifies Carbidopa EP Impurity A?
Carbidopa EP Impurity A is registered under CAS 555-30-6. You may also see it listed as Methyldopa, Carbidopa - Impurity A, Presolisin. Our catalogue number for this item is ZX-021039.
What are the formula and molar mass of Carbidopa EP Impurity A?
For Carbidopa EP Impurity A, its formula is C10H13NO4 and its molar mass is 211.21 g/mol. The systematic (IUPAC) name is (2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoic acid. InChIKey CJCSPKMFHVPWAR-JTQLQIEISA-N lets you match it in any structure database.
How is Carbidopa EP Impurity A used in pharmaceutical QC?
Carbidopa EP Impurity A is a characterised reference material linked to Carbidopa. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Carbidopa EP Impurity A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Carbidopa EP Impurity A?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Carbidopa EP Impurity A to my country?
Yes. Because Carbidopa EP Impurity A is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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