WS Sulphate/TOC Back Catalog number: 55070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94075 PCB/Pesticide Standard Price on request 10006R CLP Semi-Volatiles - Benzidines Price on request 9874.16-50-IO 2,3-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3674-65-5 Price on request