Coumachlor is a first-generation anticoagulant rodenticide of the 4-hydroxycoumarin class that inhibits vitamin K epoxide reductase, used in pest control programmes. Simson Pharma's Coumachlor reference standard supports residue analysis and quality testing in agrochemical and toxicological programmes.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Coumachlor Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.