Synonyms: 2-Propenoicacid, 2-methyl-,2,3,3a,4,4a,5,7a,8,9,9a-decahydro-9-hydroxy-3,4a,8-trimethyl-2,5-dioxoazuleno[6,5-b]furan-4-ylester, [3S-(3a,3ab,4b,4aa,7ab,8b,9a,9ab)]-; Ambros-2-en-12-oic acid,6,8,9-trihydroxy-4-oxo-, 12,8-lactone, 6-methacrylate (8CI); Azuleno[6,5-b]furan,2-propenoic acid deriv.; Methacrylic acid, 6-ester with6,8,9-trihydroxy-4-oxoambros-2-en-12-oic acid 12,8-lactone (8CI); NSC 220531;Radiatin