1-(2-Caren-4-yl)propan-1-ol 67800-82-2 Bicyclo(4.1.0)hept-4-ene-3-methanol, alpha-ethyl-4,7,7-trimethyl- EINECS 267-106-9 alpha-Ethyl-4,7,7-trimethylbicyclo(4.1.0)hept-4-ene-3-methanol