Thorium (Th) Back Catalog number: 58090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1107.14-K-T 9-Nitroanthracene-d9, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 220381-38-4 Price on request 11691.12-100-IO 2,3,4',4'-Tetachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 677936 D12-Benzo[a]pyrene, 100 µg/ml, Cyclohexane, 1ml Price on request