EPA Method 548.1 Analyte Back Catalog number: 30277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681500 Benzylalcohol, 100 µg/ml, Methanol, 5ml Price on request 9274.20-25MG Naltrexone hydrochloride, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 16676-29-2 Price on request 70039 beta-BHC Price on request