4,4'-DDE 是持久性 DDT 的主要代谢物。4,4'-DDE是一种有效的雄激素受体拮抗剂，IC50=5 μM，Ki=3.5 μM。

4,4'-DDE is a metabolite and degradation product of the organochlorine pesticide DDT

4,4'-DDE inhibits estrogen binding to rainbow trout estrogen receptors (rtERs) with an IC50 value of 8 μM[1]

72-55-9

C14H8Cl4

318.02

p,p'-dichlorodiphenyldichloroethylene;2，2-双（4-氯苯基）-1，1-二氯乙烯;Dichlorodiphenyldichloroethylene;4,4'-DDE

DMSO:63mg/mL(198.09mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years