英文名称
                        N-[2,7-ditert-butyl-5-[[N-[2-[2-[[[[2,7-ditert-butyl-5-[[N-(2,7-ditert-butyl-5-isocyanato-9,9-dimethylxanthen-4-yl)-C-hydroxycarbonimidoyl]amino]-9,9-dimethylxanthen-4-yl]amino]-hydroxymethylidene]amino]phenoxy]phenyl]-C-hydroxycarbonimidoyl]amino]-9,9-dimethylxanthen-4-yl]-N'-(2,7-ditert-butyl-5-isocyanato-9,9-dimethylxanthen-4-yl)carbamimidic acid