DL-Methionine sulfoxide

DL-蛋氨酸亚砜

Also known as: Methionine sulfoxide, H-DL-Met(O)-OH, 2-Amino-4-(methylsulfinyl)butanoic acid, 2-Amino-4-(methylsulfinyl)butyric acid, Butanoic acid, 2-amino-4-(methylsulfinyl)-, DL-2-AMINO-4(METHYLSULFINYL)BUTANOIC ACID, DL-METHIONINE SULPHOXIDE, DL-METHIONINE-DL-SULFOXIDE, EINECS 263-700-7, MFCD00002620, UNII:O74B4F6OYL, methionine S-oxide, LABOTEST-BB LT00053249

DL-Methionine sulfoxide (CAS 62697-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO3S and a molecular weight of 165.211 g/mol. It is also known as Methionine sulfoxide, H-DL-Met(O)-OH and 2-Amino-4-(methylsulfinyl)butanoic acid. Key properties include a melting point of 240ºC, a boiling point of 434.3±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 216.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 62697-73-8
Jingsj CID: J-1001542-3
Molecular Formula: C₅H₁₁NO₃S
Chinese Name: DL-蛋氨酸亚砜
Molecular Weight: 165.211 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	240ºC
Boiling Point	434.3±40.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	216.4±27.3 °C

Frequently Asked Questions

What is the CAS number of DL-Methionine sulfoxide?

The CAS number of DL-Methionine sulfoxide is 62697-73-8.

What are the molecular formula and molecular weight of DL-Methionine sulfoxide?

DL-Methionine sulfoxide has molecular formula C5H11NO3S and molecular weight 165.211 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "DL-Methionine sulfoxide (CAS 62697-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001542-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.