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2-Amino-3-methylbenzoic acid

Also known as: 3-Methylanthranilic acid, 2-Amino-m-toluic acid, 3-Methyl-2-aminobenzoic acid

2-Amino-3-methylbenzoic acid (CAS 4389-45-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9NO2 and a molecular weight of 151.17 g/mol. Key properties include a melting point of 174-177 °C(lit.), a boiling point of 315.1±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 144.4±24.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4389-45-1
Jingsj CID
J-45210-8
Molecular Formula
C8H9NO2
Molecular Weight
151.17 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-177 °C(lit.)
Boiling Point315.1±30.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point144.4±24.6 °C
Exact Mass151.063324
PSA63.32000
LogP1.67
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.618

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Customs & Trade Information

HS Code2922499990
SummaryHS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Amino-3-methylbenzoic acid?

The CAS number of 2-Amino-3-methylbenzoic acid is 4389-45-1.

What are the molecular formula and molecular weight of 2-Amino-3-methylbenzoic acid?

2-Amino-3-methylbenzoic acid has molecular formula C8H9NO2 and molecular weight 151.17 g/mol.

Is 2-Amino-3-methylbenzoic acid hazardous?

2-Amino-3-methylbenzoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 2-Amino-3-methylbenzoic acid?

For 2-Amino-3-methylbenzoic acid, Upstream Products: 3-Methyl-2-nitrobenzoic acid, 7-Methyl-1H-indole-2,3-dione, 3-Methylbenzoic acid; Downstream Products: 3-Methyl-2-nitrobenzoic acid, 2-amino-3-methylbenzyl alcohol, o-Toluidine.

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-Amino-3-methylbenzoic acid (CAS 4389-45-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45210-8 (accessed 2026-11-09).

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