The absorption, distribution, covalent binding and excretion of 2,3-14C-ethyl acrylate (EtAc) was studied in F344 male rats. EtAc was readily absorbed, distributed to all tissues, metabolized and excreted mainly in the expired air as 14C-CO2 (70% of the dose in 24 hours). Three to 5% of the administered dose was excreted in the urine in 4 hours as mercapturic acids of EtAc and acrylic acid. Approximately 4% of the administered dose was excreted in the bile in 6 hours. The highest concentrations of radioactivity were found in the stomach, liver and kidneys respectively. Chemical fractionation of the forestomach and liver revealed that a major portion of the radioactivity in the stomach and liver was covalently bound to the protein fraction at 4 hours after treatment. Twenty-four hours after treatment, there was a significant decline in EtAc covalent protein binding in the liver, while there was no such decline in the stomach. No significant binding to nucleic acids was found in the stomach or the liver.

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Intramural Research (Z01)
Project #
1Z01ES021060-02
Application #
3965201
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
1986
Total Cost
Indirect Cost
Name
U.S. National Inst of Environ Hlth Scis
Department
Type
DUNS #
City
State
Country
United States
Zip Code