Abstract
The developmental toxicity potential of trimethylolpropane caprylate caproate (TMPCC, CAS no. 11138-60-6) was evaluated in rats. Sprague-Dawley rats were administered TMPCC in a corn oil suspension dermally at dose levels of 0, 200, 600, or 2,000 mg/kg/day on gestation days (GD) 6-15 (sperm positive day=GD 0). Caesarean sections were performed on GD 20 and fetuses were evaluated for viability, growth, and external, visceral, and skeletal abnormalities. Each group consisted of 25 females, with at least 22 per group being pregnant. The two highest dose levels caused some local irritation at the site of application, but no decreases in maternal weight gain. There were no differences from control in any of the developmental parameters measured, including embryo/fetal viability, fetal weight, malformations, or variations. TMPCC did not cause any developmental toxicity in the Sprague-Dawley rat at dermal dosages up to 2,000 mg/kg/day.
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