Methyldopa EP Impurity A

Name: Methyldopa EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-026646

About Methyldopa EP Impurity A

Vaqora Chemicals supplies Methyldopa EP Impurity A, a pharmacopeial impurity of Methyldopa registered under CAS number 6739-31-7. With the molecular formula C11H15NO4, it has a molar mass of 225.24 g/mol. The IUPAC name is (2S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid. It is also known as 3-Methoxy-α-methyl-L-tyrosine or Methyldopa - Impurity A.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Methyldopa, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer Methyldopa EP Impurity A in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Methyldopa

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

Methyldopa impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Methyldopa EP Impurity A
Catalogue No.	VQ-026646
CAS Number	6739-31-7
IUPAC name	(2S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid
Molecular formula	C₁₁H₁₅NO₄
Molecular weight	225.24 g/mol
Exact mass	225.1001
Grade	Reference Standard
HSN code	38229090
InChIKey	BQHWFYPBSKGBMV-NSHDSACASA-N
SMILES	C[C@](CC1=CC(=C(C=C1)O)OC)(C(=O)O)N
PubChem CID	94331

Physical properties
Physical form	Solid
LogP (XLogP3)	-2.2
H-bond donors / acceptors	3 / 5
TPSA	92.8 Å²
Synonyms	3-Methoxy-α-methyl-L-tyrosine, Methyldopa - Impurity A, 3-Methoxy-alpha-methyl-L-tyrosine, 3-O-Methylmethyldopa, 3-O-methyl-methyldopa, (S)-2-Amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid, 3-methoxy-, A-methyl-l-tyrosine, 3-O-methyl methyldopa, alpha,3-O-dimethyl-L-dopa, 3-Methoxy-alpha-methyltyrosine, Tyrosine, 3-methoxy-alpha-methyl-, L-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P270, P280, P301 + P317, P305 + P351 + P338, P330, P337 + P317, 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 Methyldopa EP Impurity A?

The CAS Registry Number of Methyldopa EP Impurity A is 6739-31-7. It is also known as 3-Methoxy-α-methyl-L-tyrosine, Methyldopa - Impurity A, 3-Methoxy-alpha-methyl-L-tyrosine.

What is the molecular formula and molecular weight of Methyldopa EP Impurity A?

Methyldopa EP Impurity A has the molecular formula C11H15NO4 and a molecular weight of 225.24 g/mol. Its IUPAC name is (2S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid.

What is Methyldopa EP Impurity A used for?

Methyldopa EP Impurity A is supplied as a characterised reference material related to Methyldopa. 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 Methyldopa EP Impurity A can I order?

We supply Methyldopa EP Impurity A 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 Methyldopa EP Impurity A?

Yes. Every lot of Methyldopa EP Impurity A 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 Methyldopa EP Impurity A be shipped internationally?

Yes. Methyldopa EP Impurity A 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.