EPA Method 500 Series Internal Std #4

epsilon-HCH (BHC), 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 6108-10-7

Cyproconazole

JWH-250 N-(5-Hydroxypentyl) metabolite, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1427325-83-4