4,4’-DDE Back Catalog number: X9055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11718.12-100-IO 2,2',3,4',6'-Pentachlorobiphenyl (= 2,2',3',4,6-),100 µg/mL,isooctane,1mL, Price on request 677999 Ethoprophos, 100 µg/ml, Toluene, 1ml Price on request BDE-21 2,3,4-Tribromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request