4,4’-DDE Back Catalog number: 79149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 687726 Lamotrigine, 100mg Price on request 93845 EPA 525 Spike Mix Price on request 1232.6-K-ME n-Hexane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 110-54-3 Price on request