4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 50379 Calcium (Ca) Price on request 94510 CLP - Semi-Volatile Base/Neutral Standard Price on request 1224.24-K-IO Bis(2-ethylhexyl) phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 117-81-7 Price on request