DL-Methionine, 99%+

Name: DL-Methionine, 99%+
Brand: Vaqora Chemicals
SKU: VQ-002380

About DL-Methionine, 99%+

Vaqora Chemicals supplies DL-Methionine (Biochemistry grade), a peptide synthesis reagent registered under CAS number 59-51-8, specified at ≥99% purity. With the molecular formula C5H11NO2S, it has a molar mass of 149.21 g/mol. Its systematic (IUPAC) name is 2-amino-4-methylsulfanylbutanoic acid. Common synonyms include (±)-2-Amino-4-(methylmercapto)butyric acid and DL-2-Amino-4-(methylthio)butanoic acid.

It is supplied as a solid. Key physical data: a melting point of 280 °C (dec.). Solubility: soluble in water. Store sealed in a dry, well-ventilated location away from incompatible materials. Good laboratory practice and suitable PPE are recommended during handling.

It is commonly used for peptide coupling, solid-phase peptide synthesis and bioconjugation. It is used across academic and industrial research and diagnostics and biotechnology.

Available in 100 g, 500 g and 4 x 25 kg packs, DL-Methionine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Peptide coupling
Solid-phase peptide synthesis
Bioconjugation

Industries

Specifications & identifiers

Chemical identifiers
Product name	DL-Methionine, 99%+
Catalogue No.	VQ-002380
CAS Number	59-51-8
IUPAC name	2-amino-4-methylsulfanylbutanoic acid
Molecular formula	C₅H₁₁NO₂S
Molecular weight	149.21 g/mol
Exact mass	149.051
Grade	Biochemistry
Purity / assay	≥99%
HSN code	29304000
InChIKey	FFEARJCKVFRZRR-UHFFFAOYSA-N
SMILES	CSCCC(C(=O)O)N
PubChem CID	876

Physical properties
Physical form	Solid
Melting point	280 °C (dec.)
Solubility	H2O: soluble
LogP (XLogP3)	-1.9
H-bond donors / acceptors	2 / 4
TPSA	88.6 Å²
Synonyms	(±)-2-Amino-4-(methylmercapto)butyric acid, DL-2-Amino-4-(methylthio)butanoic acid, Racemethionine, Lobamine, (+-)-Methionine, DL-Methioninum, Methionine, DL-, 2-amino-4-(methylsulfanyl)butanoic acid, Methionine, amorphous, Methionine DL-, DL-2-Amino-4-(methylthio)-butyric acid, 2-azaniumyl-4-methylsulfanylbutanoate

Documents

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

Other grades of CAS 59-51-8

BP/EP/Ph. Eur. / Food…

DL-Methionine, BP/EP/Ph. Eur., food grade (FCC)

CAS: 59-51-8
Formula: C₅H₁₁NO₂S
MW: 149.21 g/mol

VQ-047200

Frequently asked questions

What is the CAS number of DL-Methionine, 99%+?

The CAS Registry Number of DL-Methionine, 99%+ is 59-51-8. It is also known as (±)-2-Amino-4-(methylmercapto)butyric acid, DL-2-Amino-4-(methylthio)butanoic acid, Racemethionine.

What is the molecular formula and molecular weight of DL-Methionine, 99%+?

DL-Methionine, 99%+ has the molecular formula C5H11NO2S and a molecular weight of 149.21 g/mol. Its IUPAC name is 2-amino-4-methylsulfanylbutanoic acid.

Which grade and pack sizes of DL-Methionine, 99%+ can I order?

We supply DL-Methionine, 99%+ in Biochemistry (≥99%) grade, in 100 g, 500 g, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with DL-Methionine, 99%+?

Yes. Every lot of DL-Methionine, 99%+ 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 DL-Methionine, 99%+ be shipped internationally?

Yes. We export DL-Methionine, 99%+ worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.