Organophosphorus Pesticides Back Catalog number: 94184 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1061.8-100MG 4-Ethylthiophenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 4946-13-8 Price on request 8998.18-100-ME 17ß-Estradiol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 50-28-2 Price on request 50460 Copper AA Standard (Cu) Price on request