2,3,4-Trihydroxybenzoic acid
Also known as: 2,3,4-Trihydroxybenzoic acid hydrate, Pyrogallol-4-carboxylic acid, Pyrogallic acid-4-carboxylic acid, PYROGALLIC ACID-4-CARBOXYLIC ACID, Benzoic acid, 2,3,4-trihydroxy-
2,3,4-Trihydroxybenzoic acid (CAS 610-02-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O5 and a molecular weight of 170.120 g/mol. Key properties include a melting point of ~205 °C (dec.)(lit.), a boiling point of 437.5±45.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 232.5±25.2 °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.
- 610-02-6
- Jingsj CID
- J-5662-2
- Molecular Formula
- C7H6O5
- Molecular Weight
- 170.120 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ~205 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 437.5±45.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 232.5±25.2 °C |
| Exact Mass | 170.021530 |
| PSA | 97.99000 |
| LogP | 1.47 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.730 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,3,4-Trihydroxybenzoic acid?
The CAS number of 2,3,4-Trihydroxybenzoic acid is 610-02-6.
What are the molecular formula and molecular weight of 2,3,4-Trihydroxybenzoic acid?
2,3,4-Trihydroxybenzoic acid has molecular formula C7H6O5 and molecular weight 170.120 g/mol.
Is 2,3,4-Trihydroxybenzoic acid hazardous?
2,3,4-Trihydroxybenzoic 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 2,3,4-Trihydroxybenzoic acid?
For 2,3,4-Trihydroxybenzoic acid, Upstream Products: 2,4-Dihydroxybenzoic acid, Pyrogallol, Carbon dioxide; Downstream Products: 2-hydroxy-3,4-dimethoxybenzoic acid, 2,3,4,4'-Tetrahydroxybenzophenone, Pyrogallol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3,4-Trihydroxybenzoic acid (CAS 610-02-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5662-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.