Dienestrol is a synthetic non-steroidal oestrogen of the stilbestrol class used topically as an intravaginal cream for atrophic vaginitis and vulvovaginal atrophy in postmenopausal women. Simson Pharma's Dienestrol reference standard supports compendial testing for this topical oestrogenic therapy.

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