Calibration Standard Mix 4 Back Catalog number: 53046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680129 Fenthion-oxon-sulfoxide, 50mg Price on request 3940.2-1ML trans-1,2-Dichloroethene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 156-60-5 Price on request 9499.10-100 Clofibric acid, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 882-09-7 Price on request