Semi-Volatile Standard Back Catalog number: 93959 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0484.16-200-T Benzo[b]naphtho[2,3-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 243-46-9 Price on request 55143 RCRA Perchlorate Price on request DD-123467-S 1,2,3,4,6,7-Hexachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request