EPA Method 515.1Methyl Derivatives Back Catalog number: 30044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDET-MXA Mass-Labelled DDT & Related Compound Mix, 2µg/ml in Nonane, 1,2ml Price on request 674062 Coumaphos, 10.0 µg/ml, Acetonitrile, 10ml Price on request 675829 Endrin, 100 µg/ml, Toluene, 5ml Price on request