Calibration Standard Mix 4 Back Catalog number: 53046 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 3989.8-K-CY Isopropylcyclopentane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 3875-51-2 Price on request 3PM180 2,2',3,4,4',5,5'-Heptachloro-3'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request