1,6-Dioxaspiro[4.4]non-3-en-2-one,7-hydroxy-4-methoxy-7,8-dimethyl-9-methylene-

1,6-Dioxaspiro[4.4]non-3-en-2-one,7-hydroxy-4-methoxy-7,8-dimethyl-9-methylene- · CAS 179308-49-7