Calibration Standards Set Back Catalog number: 52016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3391.9-100 Endosulfan , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 115-29-7 Price on request 71215 Cyclohexylamine Price on request 673470 Aclonifen, 10.0 µg/ml, Ethyl acetate, 10ml Price on request