208511-49-3 83796-96-7 Tbr 123 Tetrabromorhodamine 123 Xanthylium, 3,6-diamino-2,4,5,7-tetrabromo-9-(2-(methoxycarbonyl)phenyl)-, chloride Xanthylium, 3,6-diamino-2,4,5,7-tetrabromo-9-(2-(methoxycarbonyl)phenyl)-,chloride