Houghton Chemical CorporationIndofine Chemical Company, Inc.International Laboratory (IL)Isoprenoids, LCIsoSciences LLCCambridge Isotope Laboratories, Inc.ITOCHU Chemicals America Inc.Ivy Fine ChemicalsMarubeni Specialty Chemicals, Inc.Johnson Matthey Pharma ServicesJost Chemical Co.KAH Specialty Products, LLCKingchem LLC
United StatesLab Express International Inc.United StatesLC LaboratoriesLehan Chemical Brokerage Services, LLCLife Sciences Advanced TechnologiesMarshallton Research LaboratoriesMatrix ScientificMDS Chemical Inc.Methapharm, Inc.MFG Chemical, Inc.United StatesMIC Specialty ChemicalsEcadil Qu?mica Farmac?utica Ltda.FermagCertronic Ind. e Com. LtdaBela VistaGama SADeten Quimica S.A.Cloroetil Solventes Aceticos S.A.