2-Chlorobenzoic acid

邻氯苯甲酸

Also known as: o-Chlorobenzoic acid, 2-CBA, OCBA, 2-Chlorobenzoate, Benzoic acid, 2-chloro-, Benzoic acid, o-chloro-, Mesalamine Impurity L, Mesalazine Impurity 20, 2-Chlorobenzoic Acid Zone Refined (number of passes:20), EINECS 204-285-4, MFCD00002412, UNII-8P0867193V

CAS No.
118-91-2
Jingsj CID
J-33610-3
Molecular Formula
C7H5ClO2
Chinese Name
邻氯苯甲酸
Molecular Weight
156.566 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point138-140 °C(lit.)
Boiling Point275.7±13.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point120.5±19.8 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Chlorobenzoic acid?

118-91-2

What are the molecular formula and molecular weight of 2-Chlorobenzoic acid?

C7H5ClO2, molecular weight 156.566 g/mol

Is 2-Chlorobenzoic acid hazardous?

Warning

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026