4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 677343 Tridecafluorohexane-1-sulfonic acid potassium salt Price on request 82491 EPA Method 1666Labeled Standard Price on request 54129 EPA Method 300.0 Eluent 100 x Conc., 100ml Price on request