4,4’-DDE Back Catalog number: 79688 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30078 EPA Method 548.1 Internal Standard Price on request 673273 Ethiofencarb-sulfone, 100 µg/ml, Acetonitrile, 5 Price on request H946455 2-(Hydroxymethyl)butanoic Acid, 10mg Price on request