(R)-(-)-3-Hydroxyisobutyric acid methyl ester

(R)-(-)-3-羟基异丁酸甲酯

Also known as: (R)-(-)-3-Hydroxy-2-methylpropionic acid methyl ester, Methyl (R)-(-)-3-hydroxy-2-methylpropionate, Methyl (2R)-3-hydroxy-2-methylpropanoate, (R)-Roche ester, Roche ester, D(-)-beta-Hydroxyisobutyric acid methyl ester, (-)-Methyl D-beta-hydroxyisobutyrate, MFCD00063450

(R)-(-)-3-Hydroxyisobutyric acid methyl ester (CAS 72657-23-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10O3 and a molecular weight of 118.131 g/mol. It is also known as (R)-(-)-3-Hydroxy-2-methylpropionic acid methyl ester, Methyl (R)-(-)-3-hydroxy-2-methylpropionate and Methyl (2R)-3-hydroxy-2-methylpropanoate. Key properties include a boiling point of 175.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 81.1±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
72657-23-9
Jingsj CID
J-29222-7
Molecular Formula
C5H10O3
Chinese Name
(R)-(-)-3-羟基异丁酸甲酯
Molecular Weight
118.131 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point175.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point81.1±0.0 °C

Frequently Asked Questions

What is the CAS number of (R)-(-)-3-Hydroxyisobutyric acid methyl ester?

The CAS number of (R)-(-)-3-Hydroxyisobutyric acid methyl ester is 72657-23-9.

What are the molecular formula and molecular weight of (R)-(-)-3-Hydroxyisobutyric acid methyl ester?

(R)-(-)-3-Hydroxyisobutyric acid methyl ester has molecular formula C5H10O3 and molecular weight 118.131 g/mol.

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

Last updated:

How to cite: Jingsj. "(R)-(-)-3-Hydroxyisobutyric acid methyl ester (CAS 72657-23-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29222-7 (accessed 2026-10-24).

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