(2S)-2-Chloro-3-methylbutanoic acid

(S)-2-氯-3-甲基丁酸

Also known as: (S)-2-Chloro-3-methylbutyric acid, (S)-(-)-2-Chloro-3-methylbutyric acid, (S)-(-)-2-Chloro 3-methylbutanoic acid, (S)-α-Chloroisovaleric acid, (S)-2-Chloroisovaleric acid, (2S)-2-Chloro-3-methylbutanoic acid, (S)-(+)-2-Chloro-3-methylbutanoic acid, (S)-(CH3)2CHCHClCOOH

(2S)-2-Chloro-3-methylbutanoic acid (CAS 26782-74-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H9ClO2 and a molecular weight of 136.577 g/mol. It is also known as (S)-2-Chloro-3-methylbutyric acid, (S)-(-)-2-Chloro-3-methylbutyric acid and (S)-(-)-2-Chloro 3-methylbutanoic acid. Key properties include a boiling point of 210.3±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 81.0±19.8 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
26782-74-1
Jingsj CID
J-1510171-6
Molecular Formula
C5H9ClO2
Chinese Name
(S)-2-氯-3-甲基丁酸
Molecular Weight
136.577 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point210.3±13.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point81.0±19.8 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of (2S)-2-Chloro-3-methylbutanoic acid?

The CAS number of (2S)-2-Chloro-3-methylbutanoic acid is 26782-74-1.

What are the molecular formula and molecular weight of (2S)-2-Chloro-3-methylbutanoic acid?

(2S)-2-Chloro-3-methylbutanoic acid has molecular formula C5H9ClO2 and molecular weight 136.577 g/mol.

Is (2S)-2-Chloro-3-methylbutanoic acid hazardous?

(2S)-2-Chloro-3-methylbutanoic acid has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "(2S)-2-Chloro-3-methylbutanoic acid (CAS 26782-74-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510171-6 (accessed 2026-10-25).

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