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(S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid

(S)-(-)-2-羟基-3,3-二甲基丁酸

Also known as: (2S)-2-Hydroxy-3,3-dimethylbutanoic acid, (S)-3,3-dimethyl-2-hydroxybutanoic acid, (S)-3,3-dimethyl-2-hydroxybutyric acid, (S)-Trimethyllactic acid, L-α-Trimethyllactate

(S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid (CAS 21641-92-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H11O3- and a molecular weight of 131.15000 g/mol. It is also known as (2S)-2-Hydroxy-3,3-dimethylbutanoic acid, (S)-3,3-dimethyl-2-hydroxybutanoic acid and (S)-3,3-dimethyl-2-hydroxybutyric acid. Key properties include a melting point of 48-50ºC, a boiling point of 242.4ºC at 760mmHg, a density of 1.1g/cm3 and a flash point of 114.6ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21641-92-9
Jingsj CID
J-12033-9
Molecular Formula
C6H11O3
Chinese Name
(S)-(-)-2-羟基-3,3-二甲基丁酸
Molecular Weight
131.15000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point48-50ºC
Boiling Point242.4ºC at 760mmHg
Density1.1g/cm3
Flash Point114.6ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid?

The CAS number of (S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid is 21641-92-9.

What are the molecular formula and molecular weight of (S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid?

(S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid has molecular formula C6H11O3- and molecular weight 131.15000 g/mol.

Is (S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid hazardous?

(S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "(S)-(-)-2-Hydroxy-3,3-dimethylbutyric acid (CAS 21641-92-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12033-9 (accessed 2026-10-24).

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