129833-00-7 2H-(1,2)Dioxeto(3',4':4,5)furo(3,2-h)-1-benzopyran-2-one, 6b,8a-dihydro-4,6b,8a-trimethyl- 6b,8a-Dihydro-4,6b,8a-trimethyl-2H-(1,2)dioxeto(3',4':4,5)furo(3,2-h)-1-benzopyran-2-one CCRIS 4164