Methionine EP Impurity A

Name: Methionine EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-023087

About Methionine EP Impurity A

Vaqora Chemicals supplies Methionine EP Impurity A, a pharmacopeial impurity of Methionine registered under CAS number 3226-65-1. Its molecular formula is C5H11NO3S and its molecular weight is 165.21 g/mol. The IUPAC name is (2S)-2-amino-4-methylsulfinylbutanoic acid. Alternative names: L-Methionine Sulfoxide and Methionine - Impurity A.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Methionine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Methionine EP Impurity A 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 Methionine

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

Methionine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Methionine EP Impurity A
Catalogue No.	VQ-023087
CAS Number	3226-65-1
IUPAC name	(2S)-2-amino-4-methylsulfinylbutanoic acid
Molecular formula	C₅H₁₁NO₃S
Molecular weight	165.21 g/mol
Exact mass	165.046
Grade	Reference Standard
HSN code	38229090
InChIKey	QEFRNWWLZKMPFJ-YGVKFDHGSA-N
SMILES	CS(=O)CC[C@@H](C(=O)O)N
PubChem CID	158980

Physical properties
Physical form	Solid
LogP (XLogP3)	-4.1
H-bond donors / acceptors	2 / 5
TPSA	99.6 Å²
Synonyms	L-Methionine Sulfoxide, Methionine - Impurity A, methionine sulfoxide, Methionine S-oxide, L-methionine S-oxide, (2S)-2-azaniumyl-4-methylsulfinylbutanoate, (2S)-2-azanyl-4-methylsulfinyl-butanoic acid, 2-Azaniumyl-4-methylsulfinylbutanoate, 2-amino-4-methanesulfinylbutanoic acid, 2-Amino-4-(methylsulfinyl)butanoic acid, 2-amino-4-methylsulfinylbutanoic acid, Butanoic acid, 2-amino-4-(methylsulfinyl)-

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 Methionine EP Impurity A?

The CAS Registry Number of Methionine EP Impurity A is 3226-65-1. It is also known as L-Methionine Sulfoxide, Methionine - Impurity A, methionine sulfoxide.

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

Methionine EP Impurity A has the molecular formula C5H11NO3S and a molecular weight of 165.21 g/mol. Its IUPAC name is (2S)-2-amino-4-methylsulfinylbutanoic acid.

What is Methionine EP Impurity A used for?

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

We supply Methionine 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 Methionine EP Impurity A?

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

Yes. We export Methionine EP Impurity A worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.