N,N'-dibutylbutane-1,4-diamine

3,4-bis(butylamino)cyclobut-3-ene-1,2-dione

N-butylpentan-3-imine

N-丁基-D-谷氨酰胺

1-(5-bicyclo[2.2.1]hept-2-enyl)-N-butylmethanimine