cis-2-Butene Back Catalog number: 72428 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1696.17-K-IO 9-n-Butylfluorene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3952-42-9 Price on request 673785 Demeton-S-methyl-sulfoxide, 100 µg/ml, Ethyl acet Price on request 2955.10-100-IO Malathion-d10 (diethyl-d10), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 347841-48-9 Price on request