Developmental toxicity of 2-ethylhexyl stearate

Area of Science:

• Toxicology
• Developmental Biology
• Chemical Safety Assessment

Background:

• 2-Ethylhexyl stearate is a chemical compound used in various applications.
• Assessing the potential risks of chemical substances to development is crucial for public health and environmental safety.

Purpose of the Study:

• To evaluate the embryo-foetal toxicity and teratogenicity of 2-Ethylhexyl stearate in a rat model.
• To determine the maternal and developmental No Observed Adverse Effect Level (NOAEL) for 2-Ethylhexyl stearate.

Main Methods:

• A study was conducted on pregnant rats following OECD guidelines for chemical testing (No. 414).
• Doses of 0, 100, 300, and 1000 mg/kg/day of 2-Ethylhexyl stearate were administered via gavage.
• Maternal toxicity, pre- and post-implantation loss, resorptions, and foetal malformations (skeletal and visceral) were assessed.

Main Results:

• Dams tolerated all tested dose levels without observable toxic effects.
• No significant differences were found in pre- and post-implantation loss or mean numbers of resorptions compared to the control group.
• No treatment-related skeletal or visceral malformations were detected in the offspring.

Conclusions:

• 2-Ethylhexyl stearate demonstrated no adverse effects on embryo-foetal development or teratogenicity in rats.
• The No Observed Adverse Effect Level (NOAEL) for maternal toxicity, embryo-foetal toxicity, and teratogenicity was determined to be 1000 mg/kg body weight/day.