1,2-Cyclobutanediacrylic acid, 1,2-dihydroxy-, di-gamma-lactone 1,7-DIOXADISPIRO(4.0.4.2)DODECA-3,9-DIENE-2,8-DIONE 1,7-Dioxadispiro(4.0.4.2)dodeca-3,9-diene-2,8-dione, trans- 5-19-05-00101 (Beilstein Handbook Reference) 508-44-1 Anemone camphor Anemonin BRN 0009390 Pulsatilla camphor