WS Benzo(a)pyrene - Cal Check Back Catalog number: 91833 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32761 3-Methylhexane Price on request 673844 D9-Chlormequat Chloride, 100 µg/ml , Deuterium ox Price on request 3620.12-K-IO 3,3'-Difluorodiphenyl ether, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1800-48-2 Price on request