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. 1975;10(2):121-8.
doi: 10.1080/00139307509435815.

Placental transfer and teratology of pentachlorophenol in rats

R V Larsen, G S Born, W V Kessler, S M Shaw, D C Van Sickel

Placental transfer and teratology of pentachlorophenol in rats

R V Larsen et al. Environ Lett. 1975.

Abstract

Pentachloro[U-14C]phenol was administered orally to Charles River CD strain pregnant rats on day 15 of gestation. Concentrations found in the placentas and fetuses up to 32 hr remained very small indicating that the amount that passes through the placental barrier is negligible. Unlabeled compound was administered on days 8, 9, 10, 11, 12, and 13 of gestation. The incidence of resorptions in the treated animals was not significantly greater than that in the controls. Although malformations were observed, the number was minimal and could have been due to the toxic effects of the compound on the maternal rat.

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