(3-Methylbut-2-enyl)guanidine 3-04-00-00465 (Beilstein Handbook Reference) 543-83-9 BRN 1754651 GUANIDINE, (3-METHYL-2-BUTENYL)- Galegin Galegine Isopentenyl guanidine N-3,3-Dimethylallylguanidine