Modified 525.2 Pesticide Standard #1 Back Catalog number: 31006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1124.18-200-T Benzo[1,2-b;4,5-b']bisbenzofuran, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 208-37-7 Price on request 94101 Semi-Volatile Standard Price on request 11918.4-10MG Hexachloro-1,3-butadiene-13C4,neat,neat,10mg, Price on request