| abstract |
Insect repellants having improved effectiveness, increased mucosa tolerance and compatibility with plastic objects containing, as an active ingredient, at least one 3-aminopropionic acid derivative which is disubstituted at the nitrogen atom, having the general structure <IMAGE> in which R1 is a branched or unbranched alkyl radical having one to six carbon atoms, R2 is hydrogen, methyl or ethyl, R3 is a branched or unbranched alkyl or alkoxy group having one to eight carbon atoms, and X is -C 3BOND N or -COOR4, R4 being a branched or unbranched alkyl group having one to six carbon atoms. |