3-(5-tert-Butylisoxazol-3-yl)-1,1-dimethylurea 55861-78-4 BRN 1078336 Caswell No. 419E EL-187 EPA Pesticide Chemical Code 125801 ISOURON Isouron [ANSI:BSI:ISO] N'-(5-(1,1-Dimethylethyl)-3-isoxazolyl)-N,N-dimethylurea N,N-Dimethyl-N'-(5-(1,1-dimethylethyl)-3-isoxazolyl)urea SSH 43 Urea, N'-(5-(1,1-dimethylethyl)-3-isoxazolyl)-N,N-dimethyl- (9CI) Urea, N,N-dimethyl-N'-(5-(1,1-dimethylethyl)-3-isoxazolyl)-