10,12-Pentacosadiynoic acid
Also known as: Pentacosa-10,12-diynoic acid, 10,12-Pentacosadiynecarboxylic acid, DA 3261, TIMTEC-BB SBB009109, 10,12-Pentacosadiynoic acid, 98%
10,12-Pentacosadiynoic acid (CAS 66990-32-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C25H42O2 and a molecular weight of 374.600 g/mol. Key properties include a melting point of 62-63°C, a boiling point of 522.5±33.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 246.9±20.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66990-32-7
- Jingsj CID
- J-45464-8
- Molecular Formula
- C25H42O2
- Molecular Weight
- 374.600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 62-63°C |
|---|---|
| Boiling Point | 522.5±33.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 246.9±20.1 °C |
| Exact Mass | 374.318481 |
| PSA | 37.30000 |
| LogP | 10.23 |
| Vapor Pressure | 0.0±2.9 mmHg at 25°C |
| Refractive Index | 1.486 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 10,12-Pentacosadiynoic acid?
The CAS number of 10,12-Pentacosadiynoic acid is 66990-32-7.
What are the molecular formula and molecular weight of 10,12-Pentacosadiynoic acid?
10,12-Pentacosadiynoic acid has molecular formula C25H42O2 and molecular weight 374.600 g/mol.
Is 10,12-Pentacosadiynoic acid hazardous?
10,12-Pentacosadiynoic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 10,12-Pentacosadiynoic acid?
For 10,12-Pentacosadiynoic acid, Upstream Products: 10-Undecynoic acid; Downstream Products: 10,12-Pentacosadiyn-1-ol, Methyl 10,12-pentacosadiynoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "10,12-Pentacosadiynoic acid (CAS 66990-32-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45464-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.