英文别名
2,2,8,8-tetramethyl-3,4,7,8-tetrahydro-2H,6H-pyrano[3,2-g]chromene;2,2,8,8-tetramethyl-2,3,4,6,7,8-hexahydropyrano[3,2-g]chromane;2,2,8,8-tetramethyl-2,3,4,6,7,8-hexahydropyrano[3,2-g]chromene;2,3,4,6,7,8-hexahydro-2,2,8,8-tetramethylbenzo[1,2-b;5,4-b']dipyran;2,2,8,8-Tetramethyl-3,4,6,7-tetrahydropyrano[3,2-g]chromene