4-Butylbenzoic acid
Also known as: 4-n-Butylbenzoic acid, p-Butylbenzoic acid, p-n-Butylbenzoic acid, 4-butyl-benzoic acid, 4-butyl-benzoicaci, 4BA, Butyl benzoic acid, RARECHEM AL BO 0542, 4-Butyl-benzoesaeure
4-Butylbenzoic acid (CAS 20651-71-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14O2 and a molecular weight of 178.228 g/mol. Key properties include a melting point of 100-113 °C(lit.), a boiling point of 300.2±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 141.6±16.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20651-71-2
- Jingsj CID
- J-1343527-3
- Molecular Formula
- C11H14O2
- Molecular Weight
- 178.228 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 100-113 °C(lit.) |
|---|---|
| Boiling Point | 300.2±21.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 141.6±16.7 °C |
| Exact Mass | 178.099380 |
| PSA | 37.30000 |
| LogP | 3.95 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.532 |
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-Butylbenzoic acid?
The CAS number of 4-Butylbenzoic acid is 20651-71-2.
What are the molecular formula and molecular weight of 4-Butylbenzoic acid?
4-Butylbenzoic acid has molecular formula C11H14O2 and molecular weight 178.228 g/mol.
What are the upstream and downstream products of 4-Butylbenzoic acid?
For 4-Butylbenzoic acid, Upstream Products: Carbon dioxide, 1-Bromo-4-butylbenzene, Diethylzinc; Downstream Products: 4-Butylbenzyl Bromide, 4-(Hexyloxy)phenyl 4-butylbenzoate, trans-4-Butylcyclohexanecarboxylic acid.
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-Butylbenzoic acid (CAS 20651-71-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1343527-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.