Sigma , Aldrich , Fluka , Riedel , Supelco , Invitrogen , Gibco

Sigma , Aldrich , Fluka , Riedel , Supelco , Invitrogen , Gibco , Molecular Probes , Amersham ( GE Healthcare ) , Qiagen , Calbiochem , Novagen , Chemicon , Millipore , Thermo Scientific , Abcam , Santa Cruz , BD , New England Biolabs ( NEB ) , Cell Signaling ,  Novus , Promega , Acros , Merck , Whatman , Biorad , Roche , R&D , Vector Laboratories , Applied Biosystems ( ABI ), ICN ( MP ) , Ambion , Dynal , Zymed , Serotec , Ebioscience , Origene , Aviva , Biovision , BioLegend , RayBiotech , InvivoGen , Open Biosystems , Virogen , ABR , AnaSpec , Stressgen , Cell Biolabs , Biotium , Epigentek , Genosensor , Biomatrica , AQIX , ChanTest , Bethyl Laboratories , BioFX , Cellular Engineering Technologies ( CET ) , Cypex , Dendritics , Diagnostic Biosystems , Evrogen , HemoGenix , Haematologic Technologies ( HTI ) , Hycult Biotechnology ( HBT ) , Imgenex , Kingfisherbiotech , Lucigen , Mirus , Mito Science , Monosan , Olink , ORF Genetics , Strategic Diagnostics , System Biosciences , Zen-Bio , Zymo Research , Bachem , Protea Biosciences , Assay Designs , Cayman Chemical , Alfa Aecar , Cambrex , Spectrum , Taab , Agar Scientific