trans-11-octadecenoic acid
Also known as: vaccenic acid, trans-vaccenic acid, trans-11-oleic acid, 11-trans-octadecenoic acid, 11-octadecenoic acid (trans), (E)-11-octadecenoic acid
trans-11-octadecenoic acid (CAS 143-25-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H34O2 and a molecular weight of 282.46100 g/mol. Key properties include a boiling point of 398.2ºC at 760 mmHg, a density of 0.899g/cm3 and a flash point of 295ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 143-25-9
- Jingsj CID
- J-1058826-8
- Molecular Formula
- C18H34O2
- Molecular Weight
- 282.46100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 398.2ºC at 760 mmHg |
|---|---|
| Density | 0.899g/cm3 |
| Flash Point | 295ºC |
| Exact Mass | 282.25600 |
| PSA | 37.30000 |
| LogP | 6.10850 |
| Vapor Pressure | 1.87E-07mmHg at 25°C |
| Refractive Index | 1.466 |
| Storage Conditions | −20℃ |
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 trans-11-octadecenoic acid?
The CAS number of trans-11-octadecenoic acid is 143-25-9.
What are the molecular formula and molecular weight of trans-11-octadecenoic acid?
trans-11-octadecenoic acid has molecular formula C18H34O2 and molecular weight 282.46100 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. "trans-11-octadecenoic acid (CAS 143-25-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1058826-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.