2-Propenoic acid, 2-(hydroxymethyl)-, (3aR,4S,5aR,9aR,9bR)-5a-ethenyldecahydro-3,9-bis(methylene)-2,8-dioxo-2H-furo(2,3-f)(2)benzopyran-4-yl ester 2-Propenoic acid, 2-(hydroxymethyl)-, 5a-ethenyldecahydro-3,9-bis(methylene)-2,8-dioxo-2H-furo(2,3-f)(2)benzopyran-4-yl ester, (3aR-(3aalpha,4alpha,5aalpha,9aalpha,9bbeta))- 21871-10-3 2H-Furo(2,3-f)(2)benzopyran-2,8(3H)-dione, 3abeta,4,5,5a,6,9,9abeta,9balpha-octahydro-4beta-hydroxy-3,9-dimethylene-5abeta-vinyl-, 2-methylenehydracrylate, ( )- 56064-66-5 Hydracrylic acid, 2-methylene-, ester with 3abeta,4,5,5a,6,9,9abeta,9balpha-octahydro-4beta-hydroxy-3,9-dimethylene-5abeta-vinyl-2H-furo(2,3-f)(2)benzopyran-2,8(3H)-dione, ( )- Vernodalin