2-Butanone Back Catalog number: X9130 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9432.21 trans-Permethrin (isomer mix), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 61949-77-7 Price on request 679657 4-n-Nonylphenol, 10.0 µg/ml, Acetonitrile, 10ml Price on request 1691.1-1ML Chlorodibromomethane, in Certan bottle, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 124-48-1 Price on request