Coumarin is a benzopyrone lactone found in tonka beans, sweet clover and numerous medicinal plants, regulated as a flavouring substance due to hepatotoxicity concerns, and tracked as a marker compound in herbal extracts. Simson Pharma's Coumarin reference standard supports identity testing, residue quantification and botanical standardisation across these applications.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Coumarin 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.