5-Bromo-2-chlorobenzoic Acid

5-Bromo-2-chlorobenzoic acid is a halogenated aromatic carboxylic acid widely used as a key building block in pharmaceutical and specialty chemical synthesis. Its dual halogen substitution makes it especially valuable for cross-coupling and advanced medicinal chemistry routes.


CAS Number 21739-92-4
Chemical Formula C7H4BrClO2
Molecular Weight 235.46 g/mol
Appearance White to off-white or pale yellow crystalline powder
Melting Point 155 – 160 °C
Purity ≥ 98.0%
Solubility Soluble in methanol, ethanol, and DMSO;
poorly soluble in water
Safety Information Classified as an irritant (GHS07). Causes skin and eye irritation
and may cause respiratory irritation. Use standard laboratory PPE
and adequate ventilation.
Packing Laboratory packs: 25 g, 100 g, 500 g bottles
Industrial packs: 25 Kg fiber drums with double-layered PE liners
Synonyms 2-Chloro-5-bromobenzoic acid
Uses Primarily used as a key intermediate in the synthesis of
SGLT2 inhibitors such as Empagliflozin and Dapagliflozin for
the treatment of Type 2 diabetes. Also widely used as a
substrate in palladium-catalyzed cross-coupling reactions.

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