product description
insect repellent-quwenzhi
inci name:ethyl butylacetylaminopropionate
cas no:52304-36-6
chinese ministry of agriculture official pesticide registration no:wp20080521
chemical description:3-(n-butylacetamino)-propionate
chemical formula:c11h21no3
molecular weight:m=215.29g/mol
appearance clear,colourless to slightly yellowish fluid
purity ≥98%
odour practically odourless
boiling point 292ºc (at normal pressure)
density 0.999g/ml (at 20ºc)
refractive index n20/d 1.452-1.455
vapour pressure at 20ºc 3.4×10-3mbar
at 50ºc 3.8×10-2mbar
flash point 157ºc
solubility in water(at 20ºc) about 6%
in isopropyl myristate about 50%
in ethanol(50%) about 50%
acute toxicity
(male vats) oral ld50: 12600mg/kg
dermal ld50: >4640mg/kg
inhale lc50: >10000mg/m3
irritation: none
toxicity class: low toxicity
used: insect repellent-quwenzhi can be used to produce mosquito-repellent production,as toilet water,perfume,emulsion or aerosol. it is especially useful for the people working in army,oilfield,geological measuring etc,with same chemical and physical properties as insect- -repellent ir3535.in comparison with other common insect repellents (such as deet) on the market,it has the advantage of very low toxicity and with a somewhat higher test concentration (30%),the protection time in comparison wish deet is longer against mosquito: insect repellent-quwenzhi (30%): tm=7h36min deet(33%): tm=6h18min