3,7-Dihydroxy-2-naphthoic acid
Also known as: 2,6-Dihydroxy-3-naphthoic acid, 2,6-Dihydroxy-3-naphthalenecarboxylic acid, 3,7-Dihydroxy-2-naphthalenecarboxylic acid, 3,7-Dihydroxynaphthalene-2-carboxylic acid, 3,7-Dihydroxy-2-naphtoic acid, 2,6-Dioxynaphthalene-3-carboxylic acid
3,7-Dihydroxy-2-naphthoic acid (CAS 83511-07-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H8O4 and a molecular weight of 204.179 g/mol. Key properties include a melting point of 265 °C±10 °C (dec.)(lit.), a boiling point of 442.2±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 235.3±22.4 °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.
- 83511-07-3
- Jingsj CID
- J-14495-6
- Molecular Formula
- C11H8O4
- Molecular Weight
- 204.179 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 265 °C±10 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 442.2±35.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 235.3±22.4 °C |
| Exact Mass | 204.042252 |
| PSA | 77.76000 |
| LogP | 2.48 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.762 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye 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 3,7-Dihydroxy-2-naphthoic acid?
The CAS number of 3,7-Dihydroxy-2-naphthoic acid is 83511-07-3.
What are the molecular formula and molecular weight of 3,7-Dihydroxy-2-naphthoic acid?
3,7-Dihydroxy-2-naphthoic acid has molecular formula C11H8O4 and molecular weight 204.179 g/mol.
Is 3,7-Dihydroxy-2-naphthoic acid hazardous?
3,7-Dihydroxy-2-naphthoic 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. "3,7-Dihydroxy-2-naphthoic acid (CAS 83511-07-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14495-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.