N-Formyl-DL-methionine

Also known as: For-DL-Met-OH, For-DL-Methionine, N-Formylmethionine, 2-Formamido-4-(methylthio)butyric acid, 2-Formylamino-4-(methylthio)butanoic acid, FMET, DL-2-Formamino-4-methylmercapto-buttersaeure, Methionine, N-formyl-

N-Formyl-DL-methionine (CAS 4309-82-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H11NO3S and a molecular weight of 177.221 g/mol. Key properties include a melting point of 103ºC, a boiling point of 453.5±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 228.1±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4309-82-4
Jingsj CID: J-1337540-1
Molecular Formula: C₆H₁₁NO₃S
Molecular Weight: 177.221 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	103ºC
Boiling Point	453.5±40.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	228.1±27.3 °C
Exact Mass	177.045959
PSA	91.70000
LogP	0.44
Vapor Pressure	0.0±2.4 mmHg at 25°C
Refractive Index	1.517

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-Formyl-DL-methionine?

The CAS number of N-Formyl-DL-methionine is 4309-82-4.

What are the molecular formula and molecular weight of N-Formyl-DL-methionine?

N-Formyl-DL-methionine has molecular formula C6H11NO3S and molecular weight 177.221 g/mol.

What are the upstream and downstream products of N-Formyl-DL-methionine?

For N-Formyl-DL-methionine, Upstream Products: Formic Acid, DL-Methionine; Downstream Products: N-Formyl-L-methionine, D-Methionine, L-Methionine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "N-Formyl-DL-methionine (CAS 4309-82-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1337540-1 (accessed 2026-11-09).

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