Promecarb Back Catalog number: 79273 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1088.20-100-T Benzo[a]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 63466-71-7 Price on request 3743.12-100-IO 2,3,3',4,4',5,6-Heptachlorobiphenyl , 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-50-7 Price on request 58056 Barium (Ba) Price on request