1 Albany Molecular Research Inc. (www.albmolecular.com)
2 ART-CHEM GmbH (www.art-chem-berlin.de/)
3 Asinex (www.asinex.com)
4 AsisChem (www.asischem.com)
5 ChemBridge Corporation (www.chembridge.com)
6 ChemDiv (www.chemdiv.com)
7 Enamine (www.enamine.net/)
8 Fluorochem (www.fluorochem.co.uk/)
9 InterBioScreen (www.ibscreen.com)
10 IVK Laboratories (www.ivklabs.com)
11 Key Organics (www.keyorganics.ltd.uk)
12 Life Chemicals (www.lifechemicals.com)
13 Maybridge (www.maybridge.com)
14 Nanosyn (www.nanosyn.com)
15 Oakwood Chemicals (www.oakwoodchemical.com)
16 Otava (www.otava.com.ua)
17 Peakdale (www.peakdale.co.uk)
18 Pharmeks (www.pharmeks.com)
19 Princeton BioMolecular Research (www.princetonbio.com)
20 SALOR (www.sigmaaldrich.com)
21 Specs (www.specs.net)
22 Spectrum (www.spectrum.kiev.ua)
23 TimTec (www.timtec.com)
24 TOSLab (www.toslab.com)
26 UORSY (www.uorsy.com)
27 Vitas-M (www.vitasmlab.com)
28 Open NCI database (Cactus.nci.nih.gov)