Diagnostic reagents; Chemical reagents; chemical reagents, not for medical purposes; immunoassay test strips; drug testing kits comprising reagents and assays; drug testing kits comprised of diagnostic reagents and assays for testing body fluids; drug and alcohol testing systems comprising reagents and assays, not for medical purposes; kits comprising reagents and assays for testing for the presence of analytes in biological fluids, other fluids and other matrices, not for medical purposes; kits comprising reagents and assays for collecting and testing oral fluid for the presence of drugs and drug metabolites, not for medical purposes; kits comprising reagents and assays for collecting and testing urine for the presence of alcohol and alcohol metabolites, not for medical purposes; Chemicals and / or reagents used in industry; chemicals and / or reagents used in science; chemicals and / or reagents used in toxicology testing; chemicals and / or reagents used in drug testing