WP Trace Elements Back Catalog number: 55025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1089.22-K-TX5 Benzo[ghi]perylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 93951-66-7 Price on request 70509 1,1-Dichloropropanone-2 Price on request 0030.26-200-DC Dibenzo[b,k]chrysene, 200µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 217-54-9 Price on request