Ruiyuan Group research, manufacture palladium,ruthenium,platinum,iridium,rhodium and other noble metal catalyst, Starting materials and intermediates, reagents for peptide and oligonucleotide synthesis ect.
URL: http://www.riyngroup.com in English [Translate]
PI Chem provide fine chemicals, building blocks and pharmaceutical intermediates. With a strong supplier network
combining an advanced information exchanging platform, we offer over 20,000 standard catalog products and flexible customer synthesis.
URL: http://www.pipharm.com in English [Translate]