1-Butene Back Catalog number: 71677 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679891 4,4'-Methylene-bis(2-chloroaniline), 100 µg/ml, A Price on request 3187.18-K-IO Ethyl hexadecanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 628-97-7 Price on request 8499.12-100 Dapsone, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 80-08-0 Price on request