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4-Amino-3-hydroxybenzoic acid

Also known as: 3-Hydroxy-4-aminobenzoic acid, 2-Amino-5-carboxyphenol, 2-Hydroxy-4-carboxyaniline, Benzoic acid, 4-amino-3-hydroxy-, MFCD00017094

4-Amino-3-hydroxybenzoic acid (CAS 2374-03-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H7NO3 and a molecular weight of 153.14 g/mol. Key properties include a melting point of 211-215 °C(lit.), a boiling point of 385.7±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 187.1±26.5 °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.
2374-03-0
Jingsj CID
J-18344-8
Molecular Formula
C7H7NO3
Molecular Weight
153.14 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point211-215 °C(lit.)
Boiling Point385.7±37.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point187.1±26.5 °C
Exact Mass153.042587
PSA83.55000
LogP0.68
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.691

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2922509090
Summary2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. 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 4-Amino-3-hydroxybenzoic acid?

The CAS number of 4-Amino-3-hydroxybenzoic acid is 2374-03-0.

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

4-Amino-3-hydroxybenzoic acid has molecular formula C7H7NO3 and molecular weight 153.14 g/mol.

Is 4-Amino-3-hydroxybenzoic acid hazardous?

4-Amino-3-hydroxybenzoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; 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. "4-Amino-3-hydroxybenzoic acid (CAS 2374-03-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18344-8 (accessed 2026-11-09).

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