Arachidonic acid
Also known as: (5Z,8Z,11Z,14Z)-5,8,11,14-Eicosatetraenoic acid, (5Z,8Z,11Z,14Z)-5,8,11,14-Icosatetraenoic acid, (all-Z)-5,8,11,14-Eicosatetraenoic acid, 5,8,11,14-Eicosatetraenoic acid, 5,8,11,14-All-cis-eicosatetraenoic acid, Eicosa-5Z,8Z,11Z,14Z-tetraenoic acid, cis,cis,cis,cis-5,8,11,14-Eicosatetraenoic acid, Arachidonate, AA, ARA
Arachidonic acid (CAS 506-32-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H32O2 and a molecular weight of 304.467 g/mol. Key properties include a melting point of −49 °C(lit.), a boiling point of 407.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 336.3±18.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 506-32-1
- Jingsj CID
- J-33234-5
- Molecular Formula
- C20H32O2
- Molecular Weight
- 304.467 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −49 °C(lit.) |
|---|---|
| Boiling Point | 407.5±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 336.3±18.0 °C |
| Exact Mass | 304.240234 |
| PSA | 37.30000 |
| LogP | 6.91 |
| Vapor Pressure | 0.0±2.0 mmHg at 25°C |
| Refractive Index | 1.501 |
| Additional Property | PRACTICALLY INSOLUBLE |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Tateishi N, et al. Dietary supplementation with arachidonic acid increases arachidonic acid content in paw, but does not affect arthritis severity or prostaglandin E2 content in rat adjuvant-induced arthritis model. Lipids Health Dis. 2015 Jan 16;14:3. |
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Arachidonic acid?
The CAS number of Arachidonic acid is 506-32-1.
What are the molecular formula and molecular weight of Arachidonic acid?
Arachidonic acid has molecular formula C20H32O2 and molecular weight 304.467 g/mol.
What are the upstream and downstream products of Arachidonic acid?
For Arachidonic acid, Upstream Products: 5,8,11,14-Eicosatetraynoic acid, 1,5-Decadiyne, Triclosan; Downstream Products: Thromboxane B2, Prostaglandin E2, 12S-HETE.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Arachidonic acid (CAS 506-32-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33234-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.