英文名称
1,1',1',6,6',8,8'-Heptamethyl-3,3'-diphenylspiro[quinazolin-3-ium-2,2'-quinazoline-1,3-diium];1',1',6,6',8,8'-hexamethyl-3,3'-diphenylspiro[1,3-benzothiazin-3-ium-2,2'-quinazoline-1,3-diium];1',1',6,6',8,8'-hexamethyl-3,3'-diphenylspiro[1,3-benzoxazin-3-ium-2,2'-quinazoline-1,3-diium]