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2-Hydroxyoctadecanoic acid

Also known as: 2-Hydroxystearic acid, DL-2-Hydroxystearic acid, DL-alpha-Hydroxystearic acid, DL-α-Hydroxystearic acid, Octadecanoic acid, 2-hydroxy-, 2-Hydroxy C18:0 fatty acid, monohydroxystearic acid

2-Hydroxyoctadecanoic acid (CAS 629-22-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H36O3 and a molecular weight of 300.47700 g/mol. Key properties include a boiling point of 432.6ºC at 760 mmHg, a density of 0.944g/cm3 and a flash point of 229.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
629-22-1
Jingsj CID
J-1977331-0
Molecular Formula
C18H36O3
Molecular Weight
300.47700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point432.6ºC at 760 mmHg
Density0.944g/cm3
Flash Point229.6ºC
Exact Mass300.26600
PSA57.53000
LogP5.30330
Refractive Index1.468
Storage Conditions2-8C

Frequently Asked Questions

What is the CAS number of 2-Hydroxyoctadecanoic acid?

The CAS number of 2-Hydroxyoctadecanoic acid is 629-22-1.

What are the molecular formula and molecular weight of 2-Hydroxyoctadecanoic acid?

2-Hydroxyoctadecanoic acid has molecular formula C18H36O3 and molecular weight 300.47700 g/mol.

What are the upstream and downstream products of 2-Hydroxyoctadecanoic acid?

For 2-Hydroxyoctadecanoic acid, Upstream Products: 2-bromooctadecanoic acid, Stearic acid, Methyl 2-hydroxyoctadecanoate; Downstream Products: Heptadecanoic acid, Methyl 2-hydroxyoctadecanoate, Heptadecanal.

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

Last updated:

How to cite: Jingsj. "2-Hydroxyoctadecanoic acid (CAS 629-22-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1977331-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.