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2,3-Diaminophenol

Also known as: 2,3-Diaminophenol, 3-Hydroxy-1,2-phenylenediamine, 3-Hydroxy-o-phenylenediamine, Phenol, 2,3-diamino-, 2,3-Diaminophenol sulfate, diaminohydroxybenzene, diaminophenol

2,3-Diaminophenol (CAS 59649-56-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O and a molecular weight of 124.141 g/mol. Key properties include a melting point of 161-165 °C(lit.), a boiling point of 303.6±27.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 137.4±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
59649-56-8
Jingsj CID
J-13586-4
Molecular Formula
C6H8N2O
Molecular Weight
124.141 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point161-165 °C(lit.)
Boiling Point303.6±27.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point137.4±23.7 °C
Exact Mass124.063660
PSA72.27000
LogP-0.30
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.723

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

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 2,3-Diaminophenol?

The CAS number of 2,3-Diaminophenol is 59649-56-8.

What are the molecular formula and molecular weight of 2,3-Diaminophenol?

2,3-Diaminophenol has molecular formula C6H8N2O and molecular weight 124.141 g/mol.

Is 2,3-Diaminophenol hazardous?

2,3-Diaminophenol has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2,3-Diaminophenol?

For 2,3-Diaminophenol, Upstream Products: 2-Amino-3-nitrophenol, 2,3-Dinitrophenol, 3-Nitrophenol; Downstream Products: 1H-Benzimidazol-4-ol, 2-(trifluoromethyl)-6,11-dihydro-5H-pyrido[2,3-b][1,5]benzodiazepin-7-ol, 5-Hydroxyquinoxaline.

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-Diaminophenol (CAS 59649-56-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13586-4 (accessed 2026-11-09).

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