1-n-Butyl-3-(2-pyridyl)-2-thiourea 22136-33-0 5-22-08-00345 (Beilstein Handbook Reference) BRN 0391276 Thiourea, N-butyl-N'-2-pyridinyl- (9CI) U 17086 U-17,086 Urea, 1-butyl-3-(2-pyridyl)-2-thio-