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3-Aminobenzene-1,2-diol

Also known as: 3-Amino-1,2-benzenediol, 3-Aminocatechol, 1,2-Benzenediol, 3-amino-, 2,3-Dihydroxyaniline, 3-Aminobenzene-1,2-diol

3-Aminobenzene-1,2-diol (CAS 20734-66-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H7NO2 and a molecular weight of 125.125 g/mol. Key properties include a boiling point of 297.0±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 133.4±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20734-66-1
Jingsj CID
J-1418650-6
Molecular Formula
C6H7NO2
Molecular Weight
125.125 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point297.0±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point133.4±23.2 °C
Exact Mass125.047676
PSA66.48000
LogP-0.02
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.700
Storage Conditions2-8°C

Customs & Trade Information

HS Code2922299090
Summary2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. 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 3-Aminobenzene-1,2-diol?

The CAS number of 3-Aminobenzene-1,2-diol is 20734-66-1.

What are the molecular formula and molecular weight of 3-Aminobenzene-1,2-diol?

3-Aminobenzene-1,2-diol has molecular formula C6H7NO2 and molecular weight 125.125 g/mol.

What are the upstream and downstream products of 3-Aminobenzene-1,2-diol?

For 3-Aminobenzene-1,2-diol, Upstream Products: 2,3-Dimethoxyaniline, 3-Nitrocatechol, 2,3-Dihydroxybenzoic 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. "3-Aminobenzene-1,2-diol (CAS 20734-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1418650-6 (accessed 2026-11-09).

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