2-Amino-3-(methylthio)butanoic acid

2-氨基-3-(甲硫基)丁酸

Also known as: 4-Thiaisoleucine, DL-4-Thiaisoleucine, DL-thiaisoleucine, Butanoic acid, 2-amino-3-(methylthio)-, 2-Amino-3-(methylsulfanyl)butanoic acid, MFCD00056745

2-Amino-3-(methylthio)butanoic acid (CAS 443-80-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2S and a molecular weight of 149.21100 g/mol. It is also known as 4-Thiaisoleucine, DL-4-Thiaisoleucine and DL-thiaisoleucine. Key properties include a boiling point of 280.1ºC at 760 mmHg, a density of 1.202g/cm3 and a flash point of 123.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
443-80-1
Jingsj CID
J-1476-8
Molecular Formula
C5H11NO2S
Chinese Name
2-氨基-3-(甲硫基)丁酸
Molecular Weight
149.21100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point280.1ºC at 760 mmHg
Density1.202g/cm3
Flash Point123.2ºC

Frequently Asked Questions

What is the CAS number of 2-Amino-3-(methylthio)butanoic acid?

The CAS number of 2-Amino-3-(methylthio)butanoic acid is 443-80-1.

What are the molecular formula and molecular weight of 2-Amino-3-(methylthio)butanoic acid?

2-Amino-3-(methylthio)butanoic acid has molecular formula C5H11NO2S and molecular weight 149.21100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Amino-3-(methylthio)butanoic acid (CAS 443-80-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1476-8 (accessed 2026-10-23).

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