Methyldopa EP Impurity B

Name: Methyldopa EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-031840

About Methyldopa EP Impurity B

Vaqora Chemicals supplies Methyldopa EP Impurity B, a pharmacopeial impurity of Methyldopa registered under CAS number 65555-88-6. Its molecular formula is C11H15NO3 and its molecular weight is 209.24 g/mol. Systematically, it is named (2S)-2-amino-3-(4-methoxyphenyl)-2-methylpropanoic acid. Alternative names: Methyldopa - Impurity B (Freebase) and O,alpha-dimethyl-L-tyrosine.

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.

This Methyldopa impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export 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 B
Catalogue No.	VQ-031840
CAS Number	65555-88-6
IUPAC name	(2S)-2-amino-3-(4-methoxyphenyl)-2-methylpropanoic acid
Molecular formula	C₁₁H₁₅NO₃
Molecular weight	209.24 g/mol
Exact mass	209.1052
Grade	Reference Standard
HSN code	38229090
InChIKey	GSEIHXWCWAMTTH-NSHDSACASA-N
SMILES	C[C@](CC1=CC=C(C=C1)OC)(C(=O)O)N
PubChem CID	13876049

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.2
H-bond donors / acceptors	2 / 4
TPSA	72.6 Å²
Synonyms	Methyldopa - Impurity B (Freebase), O,alpha-dimethyl-L-tyrosine, L-Tyrosine, O,alpha-dimethyl-, Methyldopa specified impurity B, (S)-2-Amino-3-(4-methoxyphenyl)-2-methylpropanoic acid, 4-Methoxy-a-methyl-L-phenylalanine, (2S)-2-amino-3-(4-methoxyphenyl)-2-methyl-propanoic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 B?

The CAS Registry Number of Methyldopa EP Impurity B is 65555-88-6. It is also known as Methyldopa - Impurity B (Freebase), O,alpha-dimethyl-L-tyrosine, L-Tyrosine, O,alpha-dimethyl-.

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

Methyldopa EP Impurity B has the molecular formula C11H15NO3 and a molecular weight of 209.24 g/mol. Its IUPAC name is (2S)-2-amino-3-(4-methoxyphenyl)-2-methylpropanoic acid.

What is Methyldopa EP Impurity B used for?

Methyldopa EP Impurity B 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 B can I order?

We supply Methyldopa EP Impurity B 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 B?

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

Yes. Methyldopa EP Impurity B 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.