QC-21 Back Catalog number: 59162 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2990.9-K-CY 2,2-Dimethylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1071-26-7 Price on request 679954 3,4-Dichloronitrobenzene, 250mg Price on request 673777 Dazomet, 100 µg/ml, Ethyl acetate, 5ml Price on request