1H,5H,11H,15H-Xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, 9-(2,4-disulfophenyl)-2,3,6,7,12,13,16,17-octahydro-, inner salt 60311-02-6 AIDS-002282 AIDS002282 SR 101 Sulforhodamine 101 Sulforhodamine 640