A leading manufacturer of research chemicals, metals and materials including high purity inorganics, organics and organometallics, precious compounds and catalysts, rare earth compounds and metals, labware and more.
URL: http://www.alfa.com/en/cas/74-89-5 in English [Translate]
We are an institute mainly engaged in technology developing,transferring, consulting, and service in organic chemical field all these years.
URL: http://www.xinan-chem.com/pages/mainen.htm in English [Translate]
CHANGDAPHARM can provide laboratory quantities of a wide range of materials for R&D usage.All products are manufactured by Companies committed to today's most rigorous global norms in our Quality Management ractices,environment and hygiene-oriented..
URL: http://www.changdapharm.com in English [Translate]
