N-Acetyl-L-methionine

About N-Acetyl-L-methionine

N-Acetyl-L-methionine is an organosulfur compound carrying the CAS registry number 65-82-7. Its molecular formula is C7H13NO3S and its molecular weight is 191.25 g/mol. Systematically, it is named (2S)-2-acetamido-4-methylsulfanylbutanoic acid. Common synonyms include N-Acetylmethionine and Acetyl-L-methionine.

Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 100 mg, 250 mg, 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	N-Acetyl-L-methionine
Catalogue No.	VQ-038352
CAS Number	65-82-7
IUPAC name	(2S)-2-acetamido-4-methylsulfanylbutanoic acid
Molecular formula	C₇H₁₃NO₃S
Molecular weight	191.25 g/mol
Exact mass	191.0616
InChIKey	XUYPXLNMDZIRQH-LURJTMIESA-N
SMILES	CC(=O)N[C@@H](CCSC)C(=O)O
PubChem CID	448580

Physical properties
Physical form	Other
LogP (XLogP3)	0.1
H-bond donors / acceptors	2 / 4
TPSA	91.7 Å²
Synonyms	N-Acetylmethionine, Acetyl-L-methionine, Methionamine, Acetylmethionine, L-(N-Acetyl)methionine, L-Methionine, N-acetyl-, Methionin, Methionine, N-acetyl-, L-, N-Ac-Met, Nalpha-acetyl-L-methionine, (2S)-2-acetamido-4-(methylsulfanyl)butanoic acid, N-Ac-L-methionine

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P317, P319, P321, 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 N-Acetyl-L-methionine?

The CAS Registry Number of N-Acetyl-L-methionine is 65-82-7. It is also known as N-Acetylmethionine, Acetyl-L-methionine, Methionamine.

What is the molecular formula and molecular weight of N-Acetyl-L-methionine?

N-Acetyl-L-methionine has the molecular formula C7H13NO3S and a molecular weight of 191.25 g/mol. Its IUPAC name is (2S)-2-acetamido-4-methylsulfanylbutanoic acid.

Which grade and pack sizes of N-Acetyl-L-methionine can I order?

We supply N-Acetyl-L-methionine, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with N-Acetyl-L-methionine?

Yes. Every lot of N-Acetyl-L-methionine 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 N-Acetyl-L-methionine be shipped internationally?

Yes. N-Acetyl-L-methionine 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.