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N-Acetyl-L-methionine

Also known as: Ac-Met-OH, Ac-L-Met-OH, NAM, Acetylmethionine, L-Methionine, N-acetyl-, (2S)-2-acetamido-4-methylsulfanylbutanoic acid, N-alpha-Acetyl-L-methionine, Methionamine, Thiomedon

N-Acetyl-L-methionine (CAS 65-82-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H13NO3S and a molecular weight of 191.248 g/mol. Key properties include a melting point of 104-107ºC, a boiling point of 371.3±52.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 178.3±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65-82-7
Jingsj CID
J-34693-5
Molecular Formula
C7H13NO3S
Molecular Weight
191.248 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point104-107ºC
Boiling Point371.3±52.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point178.3±30.7 °C
Exact Mass191.061615
PSA91.70000
LogP0.95
Vapor Pressure0.0±1.9 mmHg at 25°C
Refractive Index1.532

Activity & Biological Data

Additional Information[1]. Ball RO, et al. The in vivo sparing of methionine by cysteine in sulfur amino acid requirements in animal models and adult humans. J Nutr. 2006 Jun;136(6 Suppl):1682S-1693S.

Customs & Trade Information

HS Code29309070

Frequently Asked Questions

What is the CAS number of N-Acetyl-L-methionine?

The CAS number of N-Acetyl-L-methionine is 65-82-7.

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

N-Acetyl-L-methionine has molecular formula C7H13NO3S and molecular weight 191.248 g/mol.

What are the upstream and downstream products of N-Acetyl-L-methionine?

For N-Acetyl-L-methionine, Upstream Products: Acetamide, 3-(Methylthio)propanal, Methyl acetate; Downstream Products: N-Acetyl-L-methionine methyl ester, L-Methionine, N-Acetyl-DL-methionine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Acetyl-L-methionine (CAS 65-82-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34693-5 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.