N-Isobutyryl-L-cysteine

N-异丁酰基-L-半胱氨酸

Also known as: Isobutyryl-L-cysteine, N-Isobutyrylcysteine, I-BUT-CYS-OH, ISOBUTYRYL-CYS-OH, ISOBUTYRYL-L-CYSTEINE, (2R)-2-(2-methylpropanoylamino)-3-sulfanylpropanoic acid, (2R)-2-(isobutyrylamino)-3-mercaptopropionic acid, (R)-N-Isobutyryl-2-(mercaptomethyl)glycine

N-Isobutyryl-L-cysteine (CAS 124529-02-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H13NO3S and a molecular weight of 191.24800 g/mol. It is also known as Isobutyryl-L-cysteine, N-Isobutyrylcysteine and I-BUT-CYS-OH. Key properties include a melting point of 97-101ºC, a boiling point of 401.6ºC at 760mmHg, a density of 1.199g/cm3 and a flash point of 196.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
124529-02-8
Jingsj CID
J-1524711-1
Molecular Formula
C7H13NO3S
Chinese Name
N-异丁酰基-L-半胱氨酸
Molecular Weight
191.24800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point97-101ºC
Boiling Point401.6ºC at 760mmHg
Density1.199g/cm3
Flash Point196.7ºC

Frequently Asked Questions

What is the CAS number of N-Isobutyryl-L-cysteine?

The CAS number of N-Isobutyryl-L-cysteine is 124529-02-8.

What are the molecular formula and molecular weight of N-Isobutyryl-L-cysteine?

N-Isobutyryl-L-cysteine has molecular formula C7H13NO3S and molecular weight 191.24800 g/mol.

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

Last updated:

How to cite: Jingsj. "N-Isobutyryl-L-cysteine (CAS 124529-02-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524711-1 (accessed 2026-10-25).

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