Semi-Volatile Internal Standard Back Catalog number: 92258 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0178.16-500-IO 2-n-Butyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-31-2 Price on request 3405.25-100-CY Fenvalerate Price on request 8702.12-5MG 2,2',4,4',5-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 38380-01-1 Price on request