5-(2,3-Dimethyltricyclo(2.2.1.02,6)hept-3-yl)-2-methylpent-2-enyl butyrate 67633-99-2 Butanoic acid, 5-(2,3-dimethyltricyclo(2.2.1.02,6)hept-3-yl)-2-methyl-2-pentenyl ester EINECS 266-801-4