3-(Methylseleno)-L-alanine

3-(甲基硒基)-L-丙氨酸

Also known as: Se-Methylselenocysteine, Se-Methyl-L-selenocysteine, Se-methylseleno-L-cysteine, SEMC, Methylselenocysteine, L-Se-methylselenocysteine, 3-(Methylselanyl)-L-alanine, L-Alanine, 3-(methylseleno)-, MFCD00800565, Selenium-methylselenocystine, (2S)-2-amino-3-methylselanylpropanoic acid, (S)-2-amino-3-(methylseleno)propanoic acid

3-(Methylseleno)-L-alanine (CAS 26046-90-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9NO2Se and a molecular weight of 182.080 g/mol. It is also known as Se-Methylselenocysteine, Se-Methyl-L-selenocysteine and Se-methylseleno-L-cysteine. Key properties include a melting point of 177 °C(dec.), a boiling point of 314.1±37.0 °C at 760 mmHg and a flash point of 143.7±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
26046-90-2
Jingsj CID
J-1390-3
Molecular Formula
C4H9NO2Se
Chinese Name
3-(甲基硒基)-L-丙氨酸
Molecular Weight
182.080 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point177 °C(dec.)
Boiling Point314.1±37.0 °C at 760 mmHg
Flash Point143.7±26.5 °C

Frequently Asked Questions

What is the CAS number of 3-(Methylseleno)-L-alanine?

The CAS number of 3-(Methylseleno)-L-alanine is 26046-90-2.

What are the molecular formula and molecular weight of 3-(Methylseleno)-L-alanine?

3-(Methylseleno)-L-alanine has molecular formula C4H9NO2Se and molecular weight 182.080 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(Methylseleno)-L-alanine (CAS 26046-90-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1390-3 (accessed 2026-10-22).

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