4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 73252 Azimsulfuron Price on request 2872.19-50-IO 9-Fluoro-5-methylchrysene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 64977-46-8 Price on request 73486 Quinine Price on request