DL-Selenomethionine

DL-硒代蛋氨酸

Also known as: Seleno-DL-methionine, 2-Amino-4-(methylseleno)butanoic acid, 2-Amino-4-(methylselanyl)butanoic acid, 2-amino-4-methylselenobutanoic acid, Selenium methionine, rac-(2R*)-2-[2-(Methylseleno)ethyl]glycine, EINECS 215-977-0, MFCD00063089

DL-Selenomethionine (CAS 2578-28-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10NO2SSe and a molecular weight of 227.16300 g/mol. It is also known as Seleno-DL-methionine, 2-Amino-4-(methylseleno)butanoic acid and 2-Amino-4-(methylselanyl)butanoic acid. Key properties include a melting point of 267-269 °C, a boiling point of 320.8ºC at 760 mmHg and a flash point of 147.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2578-28-1
Jingsj CID
J-28655-6
Molecular Formula
C5H10NO2SSe
Chinese Name
DL-硒代蛋氨酸
Molecular Weight
227.16300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point267-269 °C
Boiling Point320.8ºC at 760 mmHg
Flash Point147.8ºC

Frequently Asked Questions

What is the CAS number of DL-Selenomethionine?

The CAS number of DL-Selenomethionine is 2578-28-1.

What are the molecular formula and molecular weight of DL-Selenomethionine?

DL-Selenomethionine has molecular formula C5H10NO2SSe and molecular weight 227.16300 g/mol.

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

Last updated:

How to cite: Jingsj. "DL-Selenomethionine (CAS 2578-28-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28655-6 (accessed 2026-10-23).

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