Diethylstilbestrol Monophosphate is a phosphate ester form of diethylstilbestrol historically used in prostate cancer treatment as a parenteral oestrogen; it is retained today primarily for residue-testing and historical reference purposes. Simson Pharma's Diethylstilbestrol Monophosphate reference standard supports these analytical applications.

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