2,10-Epoxypinane 5-17-01-00423 (Beilstein Handbook Reference) 6931-54-0 BRN 0105830 CCRIS 3760 EINECS 230-055-8 Pinane, 2,10-epoxy- Spiro(bicyclo(3.1.1)heptane-2,2'-oxirane), 6,6-dimethyl- beta-Pinene epoxide beta-Pinene oxide