InChI=1S/C50H40O7/c51-48-47-45(55-34-39-22-12-4-13-23-39)29-42(52-31-36-16-6-1-7-17-36)30-46(47)57-49(50(48)56-35-40-24-14-5-15-25-40)41-26-27-43(53-32-37-18-8-2-9-19-37)44(28-41)54-33-38-20-10-3-11-21-38/h1-30H,31-35H2