1,3-Butadiene Back Catalog number: 33004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3539.11-K-IO Perhydrofluorene, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 5744-03-6 Price on request 71512 Catechol Price on request 684557 Benzyldimethyloctadecylammonium chloride, 100 µg/m Price on request