EPA Method 504 Back Catalog number: 81806 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79016 a-BHC, 1000µg/ml in Hexane, 1ml Price on request 11978.21-10MG Propafenone hydrochloride,neat,neat,10mg, Price on request 8911.14 3-Methyl-2,2',4,6'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request