Calibration Standard Mix 2 Back Catalog number: 53044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677236 Endosulfan, 250mg Price on request C11603000 Chlorpyrifos-oxon, certified, 50mg Price on request 2571.24-K-IO m-Quarterphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1166-18-3 Price on request