Our science, your product

Custom design and production of specialty chemicals, intermediates and APIs

Swiss excellence encompassing low-cost European R&D expertise and large-scale advanced manufacturing in China.

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Custom design and production of specialty chemicals, intermediates and APIs


Review our broad range of products for your pharmaceutical, chemical, cosmetic and nutraceutical needs. You can also enter the product name or CAS number below or browse by product category.



With decades of experience in providing innovative chemistry, we apply cost-performance benchmarks on a project-by-project basis to find the best solution for you.


Based in the high-end business environment of Switzerland, our passion for chemistry is at our core and drives us to excel and offer our best to you. We have over 300 marketed products which are used by the world’s leading pharmaceutical, chemical, cosmetic and nutraceutical companies. One out of ten cannot be found elsewhere because our state-of-the-art R&D lab has tailor made them to suit our clients’ specific needs, and at significantly reduced rates.

Our latest products


CPhI China 2018

June 20, 2018 - June 22, 2018

Meet our experts and discover our latest products and services for the Asian pharma industry.

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Under pressure - How to get the best out of process R&D

April 17, 2018

VIO Chemicals experts talked to EPM Magazine about the critical role CDMOs can play in helping drug makers develop competitive processes without patent infringement risks and short time-to-market.

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