4-Hexylbenzoic acid
Also known as: p-Hexylbenzoic acid, 4-n-Hexylbenzoic acid, Benzoic acid, 4-hexyl-, 4-Hexylbenzoic acid, 96%, p-n-Hexylbenzoic acid, 4-hexyl-benzoic acid, Benzoic acid, p-hexyl-
4-Hexylbenzoic acid (CAS 21643-38-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H18O2 and a molecular weight of 206.281 g/mol. Key properties include a melting point of 95-97 °C, a boiling point of 330.3±21.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 157.5±16.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21643-38-9
- Jingsj CID
- J-17815-4
- Molecular Formula
- C13H18O2
- Molecular Weight
- 206.281 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 95-97 °C |
|---|---|
| Boiling Point | 330.3±21.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 157.5±16.7 °C |
| Exact Mass | 206.130676 |
| PSA | 37.30000 |
| LogP | 5.01 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.522 |
| Additional Property | methanol: 0.1 g/mL, clear |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Hexylbenzoic acid?
The CAS number of 4-Hexylbenzoic acid is 21643-38-9.
What are the molecular formula and molecular weight of 4-Hexylbenzoic acid?
4-Hexylbenzoic acid has molecular formula C13H18O2 and molecular weight 206.281 g/mol.
What are the upstream and downstream products of 4-Hexylbenzoic acid?
For 4-Hexylbenzoic acid, Upstream Products: 4-Hexylbenzaldehyde, Hexylbenzene, Oxalyl chloride; Downstream Products: trans-4-Hexylcyclohexanecarboxylic acid, 4-Hexylbenzoyl chloride, 4-Butoxyphenyl 4-hexylbenzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hexylbenzoic acid (CAS 21643-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17815-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.