Reference Substance Manufacturer
Worldwide there are three big organizations and Phytochem that work with certain
range of products for Pharmaceutical Standards.
In the field of Herbal Compounds and Unknown Impurities, Phytochem®
is the leading Producer and Seller on the market.
Government of the United States of America
Europeen Directorate for the Qualtity of Medicines
World Health Organisation
3 Phytochem Standard Qualitäten