化合物详情

High levels of methoxychlor/HPTE may cause fatigue, lethargy, tremors, convulsions and seizures. (T10, L167)

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LD50: 3460 mg/kg (Oral, Rat) (L167)

Animal studies show that HPTE may affect the reproductive system, causing harm to the ovaries, uterus, and mating cycle in females, and the testes and prostate in males, as well as decreased fertility in both sexes. Low dose HPTE exposure may also cause EEG pattern changes. (T10, L167)

Internal (Blood)

2,2-bis(p-hydroxyphenyl)-1,1, 1-trichloroethane (HPTE), acts as an estrogen analogue. HPTE is an estrogen receptor alpha agonist, and also acts as an antagonist at the estrogen receptor beta and androgen receptor. HPTE specifically inhibits the P450 cholesterol side-chain cleavage enzyme (P450scc, CYP11A1) resulting in decreased androgen production testicular Leydig cells along with decreased progesterone production by ovarian cells (A7861). HPTE directly inhibit human CYP17A1 activity (17α-hydroxylase/17,20-lyase). The IC50 value of HPTE is 1.13±0.10 uM. The observed changed in EEG patterns as well as tremors, convulsion and seizures with acute methoxychlor/HPTE exposure may be due to the inhibition of key sodium/potassium and calcium channels by HPTE.

Intermediate Oral: 0.005 mg/kg/day (L134)

No indication of carcinogenicity (not listed by IARC). (L135)