4-Ethynylbenzoic acid
Also known as: 4-ETHYNYL-BENZOIC ACID, p-Ethynylbenzoic acid, Benzoic acid, 4-ethynyl-, RARECHEM AL BO 1500, 4-Ethynylbenzoic acid 97%, 4-Ethynylbenzoic acid, >=95%, 4-ethynylbenzoic acid (SALTDATA: FREE)
4-Ethynylbenzoic acid (CAS 10602-00-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6O2 and a molecular weight of 146.14 g/mol. Key properties include a melting point of 192 °C(dec.), a boiling point of 277.2±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 126.4±17.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 10602-00-3
- Jingsj CID
- J-1377657-3
- Molecular Formula
- C9H6O2
- Molecular Weight
- 146.14 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 192 °C(dec.) |
|---|---|
| Boiling Point | 277.2±23.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 126.4±17.3 °C |
| Exact Mass | 146.036774 |
| PSA | 37.30000 |
| LogP | 2.08 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.592 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
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-Ethynylbenzoic acid?
The CAS number of 4-Ethynylbenzoic acid is 10602-00-3.
What are the molecular formula and molecular weight of 4-Ethynylbenzoic acid?
4-Ethynylbenzoic acid has molecular formula C9H6O2 and molecular weight 146.14 g/mol.
Is 4-Ethynylbenzoic acid hazardous?
4-Ethynylbenzoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
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-Ethynylbenzoic acid (CAS 10602-00-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377657-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.