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Arachidic acid

Also known as: Eicosanoic acid, Icosanoic acid, n-Eicosanoic acid, Arachic acid, 1-Eicosanoic acid, NSC 93983

Arachidic acid (CAS 506-30-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H40O2 and a molecular weight of 312.530 g/mol. Key properties include a melting point of 74-76 °C(lit.), a boiling point of 376.4±5.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 169.7±12.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
506-30-9
Jingsj CID
J-26256-6
Molecular Formula
C20H40O2
Molecular Weight
312.530 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point74-76 °C(lit.)
Boiling Point376.4±5.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point169.7±12.5 °C
Exact Mass312.302826
PSA37.30000
LogP9.28
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.457
Additional Propertypractically insoluble

Activity & Biological Data

Additional Information[1]. Koppová I, et al. Analysis of fatty acid composition of anaerobic rumen fungi. Folia Microbiol (Praha). 2008;53(3):217-20. [2]. Martin SA, et al. The discovery and early structural studies of arachidonic acid. J Lipid Res. 2016 Jul;57(7):1126-32.

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Arachidic acid?

The CAS number of Arachidic acid is 506-30-9.

What are the molecular formula and molecular weight of Arachidic acid?

Arachidic acid has molecular formula C20H40O2 and molecular weight 312.530 g/mol.

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

Last updated:

How to cite: Jingsj. "Arachidic acid (CAS 506-30-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26256-6 (accessed 2026-11-09).

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