2H-Naphtho(2,3-b)pyran-5,10-dione, 3,4-dihydro-4-(acetyloxy)-3,6-dihydroxy-8-methoxy-2-methyl- 2H-Naphtho(2,3-b)pyran-5,10-dione, 4-(acetyloxy)-3,4-dihydro-3,6-dihydroxy-8-methoxy-2-methyl- 5-18-05-00435 (Beilstein Handbook Reference) 73341-70-5 BRN 1332129 Gunacin