4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 93577 n-Propylamine Price on request 11009 CLP Semi-Volatile Internal Standard Price on request DF-146-S 1,4,6-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request