EXTRASYNTHESE manufactures and sells phytochemical analytical standards : ultra-pure chemical substances issued from plants, used to calibrate Quality Control and Research protocols. We offer samples of more than 850 substances to any industries and academic laboratories dealing with plants or plant based products: healthcare, cosmetics, nutrition, agronomy, biology, etc. We have 30 years experience in extraction, synthesis, biosynthesis, purification and analysis of phytochemicals.