(2S,7aS,11S,13R,14aS)-13-hydroxy-7,7a,8,9-tetramethoxy-2,11-diphenyl-2,3,12,13-tetrahydro-11H-chromeno[8',8a':4,5]furo[2,3-f]chromen-5(7aH)-one (non-preferred name) 6-benzofuranol, 2-(2-hydroxy-4-methoxyphenyl)- 6\'\'-Demethoxyneocalycopterone InChI=1/C34H32O9/c1-37-26-18-22(35)21-15-16-24(19-11-7-5-8-12-19)42-34(21)33(26,40-4)28-29(43-34)27-23(36)17-25(20-13-9-6-10-14-20)41-30(27)32(39-3)31(28)38-2/h5-15,18,23-25,36H,16-17H2,1-4H3/t23-,24+,25+,33-,34+/m1/s