4-Acetoxybenzoic acid
Also known as: p-Acetoxybenzoic acid, p-Acetyloxybenzoic acid, 4-Carboxyphenyl acetate, Acetic acid 4-carboxyphenyl ester, p-Carboxyphenyl acetate, p-Hydroxybenzoic acid acetate, Benzoic acid, 4-(acetyloxy)-, NSC 11340, AI3-20213, LR-67, MFCD00002540
4-Acetoxybenzoic acid (CAS 2345-34-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.157 g/mol. Key properties include a melting point of 190-194 °C(lit.), a boiling point of 325.7±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 133.2±16.7 °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.
- 2345-34-8
- Jingsj CID
- J-4951-4
- Molecular Formula
- C9H8O4
- Molecular Weight
- 180.157 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 190-194 °C(lit.) |
|---|---|
| Boiling Point | 325.7±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 133.2±16.7 °C |
| Exact Mass | 180.042252 |
| PSA | 63.60000 |
| LogP | 1.48 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.551 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Acetoxybenzoic acid?
The CAS number of 4-Acetoxybenzoic acid is 2345-34-8.
What are the molecular formula and molecular weight of 4-Acetoxybenzoic acid?
4-Acetoxybenzoic acid has molecular formula C9H8O4 and molecular weight 180.157 g/mol.
Is 4-Acetoxybenzoic acid hazardous?
4-Acetoxybenzoic 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 4-Acetoxybenzoic acid?
For 4-Acetoxybenzoic acid, Upstream Products: 4-Acetoxystyrene, 4-Acetoxyacetophenone, 4-Hydroxybenzoic acid; Downstream Products: 4-Methoxybenzoic acid, Bis(4-hydroxybenzoyl)-1,4:3,6-dianhydrosorbitol, 4-Hydroxybenzoic 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-Acetoxybenzoic acid (CAS 2345-34-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4951-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.