Coumachlor

Also known as: p-Chlorowarfarin, Chlorowarfarin, 3-(1-(4-Chlorophenyl)-3-oxobutyl)-4-hydroxycoumarin, 3-(alpha-Acetonyl-4-chlorobenzyl)-4-hydroxycoumarin, 3-(α-acetonyl-p-chlorobenzyl)-4-hydroxycoumarin, DL-3-(alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin, 3-(α-acetonyl-4-chlorobenzyl)-4-coumarin, Ratilan, Tomorin, Geigy Rodenticide Exp.332, Cumachloor, Kumachlor, UCD8XZW42P, MFCD00012094

Coumachlor (CAS 81-82-3) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H15ClO4 and a molecular weight of 342.773 g/mol. Key properties include a melting point of 168-170 °C(lit.), a boiling point of 543.1±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 282.3±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H373 — May cause damage to organs through prolonged exposure and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

81-82-3

Jingsj CID

J-32733-8

Molecular Formula

C₁₉H₁₅ClO₄

Molecular Weight

342.773 g/mol

Category

Organohalogen Compounds

Last updated

8/21/2026