4,4'-DDT (ring-13C12,99%) 100 µg/mL in Nonane, 1,2ml Back Catalog number: CLM-1281-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 82505 EPA Method 8250/8250A Mix #2 - Acids Price on request 673649 Paraoxon-methyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 19137 EPA Method 507 - Performance Check Solution Price on request