EPA Method 500 Series Internal Standard Back Catalog number: 31004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8387.18-K-IO Di-n-butyl sebacate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 109-43-3 Price on request 682384 Flubendazole, 100 µg/ml, Acetonitrile, 1ml Price on request BDE-181 2,2',3,4,4',5,6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request