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/613-50-3 in English [Translate]
Ningbo Top Chemical Limited is a dynamic and developmental company, specialized in the development, manufacturing and marketing of fine chemicals and active pharmaceutical ingredients and intermediates.
URL: http://www.top-fine-chem.com in English [Translate]
