5-[2-Ethoxy-5-[(4-methyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (Sildenafil N-Oxide)

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At Mikromol, we go beyond the standard to produce high-quality, globally relevant pharmaceutical reference standards that you can trust. For more than 25 years we have delivered quality reference standards for analytical development, method validation, and stability and release testing to customers around the world.

Alongside a market-leading product range accredited to ISO 17034, the majority of our 5,000+ impurity, API and excipient reference standards are manufactured under ISO/IEC 17025 and accompanied by an extensive Certificate of Analysis.

With unparalleled depth of knowledge, decades of manufacturing experience and unrivalled scientific excellence, we work tirelessly to help you create ever better, safer medicines.