Code: gb/t 14156-93(i 1433);cas 105-68-0;fema 2082;jecfa 44; Molecular formula: c8h16o2; Molecular weight: 144.21; Description: colorless to yellowish clear liquid. A apricot-like and pineapple-like odor, a plum-like and apricot-like odor.It is dissolved in ethanol, most non-volatility oil and organic solvent, but isn't dissolved in propanediol, glycerol and water; Natural existence in cacao, pepermint etc. Boiling point: 160f¦; Flash point: 41f¦; Assay: fª98.0%·+ Acid value: f_1.0·+ Specific gravity/density·+25/25f¦·¼: 0.866f+0.871; Refractive index·+20f¦·¼: 1.405f+1.409; Use: gb 2760-1996 stipulates it as food flavor, mainly used in flavors for apricot, pineapple, banana, rum and etc. Producing crafts: isoamyl propionate is esterified of propionic acid and isoamyl alcohol with sulfuric acid as catalyst. Usage limit: 1f=fema(mg/kg): soft drink3.8·+cold drink·+candy38·+roast food6.1·+pudding0.80f+3.7·+gum750·+ 2f=in the limit of moderation·+fdaf8172.515·+2000·¼·+ Toxicity·ªadi 1mg/kg(ce).