1,1-Dimethyl-1-(2,3-dimethyl-2-hydroxy-3-butenyl)-2-methacryloylhydrazinium hydroxide inner 83483-12-9 Hydrazinium, 1,1-dimethyl-1-(2,3-dimethyl-1-(2,3-dimethyl-2-hydroxy-3-butenyl)-2-methacryloyl-, hydroxide, inner salt