1.Fragrance material review on piperonyl acetate.
McGinty D1, Letizia CS, Api AM. Food Chem Toxicol. 2012 Sep;50 Suppl 2:S358-62. doi: 10.1016/j.fct.2012.02.056. Epub 2012 Mar 15.
A toxicologic and dermatologic review of piperonyl acetate when used as a fragrance ingredient is presented. Piperonyl acetate is a member of the fragrance structural group aryl alkyl alcohol simple acid esters (AAASAE). The AAASAE fragrance ingredients are prepared by reacting an aryl alkyl alcohol with a simple carboxylic acid (a chain of 1-4 carbons) to generate formate, acetate, propionate, butyrate, isobutyrate and carbonate esters. This review contains a detailed summary of all available toxicology and dermatology papers that are related to this individual fragrance ingredient and is not intended as a stand-alone document. Available data for piperonyl acetate were evaluated, then summarized, and includes: physical properties, acute toxicity, skin irritation, mucous membrane (eye) irritation, skin sensitization, toxicokinetics, and genotoxicity data. A safety assessment of the entire AAASAE will be published simultaneously with this document.
2.The metabolism of some food additives related to piperonal in the rabbit.
Wright DJ, Holder GM. Xenobiotica. 1980 Apr;10(4):265-70.
1. The metabolism of piperonylidene acetone, and the food additives piperonyl acetone, piperonyl acetate and piperonyl isobutyrate were studied in male rabbits after oral doses of 100 mg/kg. 2. Both piperonylidene acetone and piperonyl acetone were extensively excreted as 4-(3,4-methylenedioxyphenyl)-butan-2-ol to the extent of 71.5% and 81.5% dose respectively in the three-day urine. 3. The esters, piperonyl acetate and piperonyl isobutyrate, were both metabolized to piperonylic acid, to the extent of 70.5% and 11.4% of dose respectively, in the three-day urine.