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3-Cyano-4-hydroxybenzoic acid

Also known as: 4-Carboxy-2-cyanophenol, 5-Carboxy-2-hydroxybenzonitrile, Benzoic acid, 3-cyano-4-hydroxy-, RP112533, 3-Cyano-4-hydroxybenzoic acid 95+%

3-Cyano-4-hydroxybenzoic acid (CAS 70829-28-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO3 and a molecular weight of 163.130 g/mol. Key properties include a boiling point of 392.4±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 191.1±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70829-28-6
Jingsj CID
J-1160089-8
Molecular Formula
C8H5NO3
Molecular Weight
163.130 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point392.4±37.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point191.1±26.5 °C
Exact Mass163.026947
PSA81.32000
LogP1.70
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.643

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds 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 3-Cyano-4-hydroxybenzoic acid?

The CAS number of 3-Cyano-4-hydroxybenzoic acid is 70829-28-6.

What are the molecular formula and molecular weight of 3-Cyano-4-hydroxybenzoic acid?

3-Cyano-4-hydroxybenzoic acid has molecular formula C8H5NO3 and molecular weight 163.130 g/mol.

What are the upstream and downstream products of 3-Cyano-4-hydroxybenzoic acid?

For 3-Cyano-4-hydroxybenzoic acid, Upstream Products: Methyl 3-cyano-4-hydroxybenzoate, Methyl 3-cyano-4-methoxybenzoate, Methyl 4-hydroxy-3-iodobenzoate.

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-Cyano-4-hydroxybenzoic acid (CAS 70829-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1160089-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.