1,4-Ethanonaphtho(2,3-c:6,7-c')dipyran-9-acetic acid, 1,3,4,6,7,9,10,11-octahydro-3,7-dimethyl-6,11-dioxo-4,5,12,13-tetrahydroxy-, methyl ester, (1R-(1-alpha,3-beta,4-beta,7-beta,9-alpha,13R*))- 63972-31-6 Dihydrogranaticin methyl ester Granatomycin A