Methaneseleninic acid

甲亚硒酸

Also known as: Methylseleninic acid, Methylselenic acid, NSC 243621, NSC 244776, methylseleninate, Methanseleninsaeure, Methanselensaeure, Methylseleninsaeure, MFCD03093983

Methaneseleninic acid (CAS 28274-57-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CH4O2Se and a molecular weight of 127.00100 g/mol. It is also known as Methylseleninic acid, Methylselenic acid and NSC 243621. Key property: a melting point of 128-132ºC(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28274-57-9
Jingsj CID
J-1497883-0
Molecular Formula
CH4O2Se
Chinese Name
甲亚硒酸
Molecular Weight
127.00100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128-132ºC(lit.)

Frequently Asked Questions

What is the CAS number of Methaneseleninic acid?

The CAS number of Methaneseleninic acid is 28274-57-9.

What are the molecular formula and molecular weight of Methaneseleninic acid?

Methaneseleninic acid has molecular formula CH4O2Se and molecular weight 127.00100 g/mol.

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

Last updated:

How to cite: Jingsj. "Methaneseleninic acid (CAS 28274-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497883-0 (accessed 2026-10-24).

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