4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 22005 Acid Surrogate Standard Price on request S-4543-20-DCX5 S-4543-20-DCM-5X1ML Naphthalene Mix, 20µg/mL in dichloromethane, 5 x 1ml Price on request 679775 2,4-D-iso-propyl ester, 250mg Price on request