3,10-diamino-6,13-dichloro-[1,4]benzoxazino[2,3-b]phenoxazine-4,11-disulfonic acid 生成 10-amino-3-[(10-amino-6,13-dichloro-4,11-disulfo-[1,4]benzoxazino[2,3-b]phenoxazin-3-yl)carbamoylamino]-6,13-dichloro-[1,4]benzoxazino[2,3-b]phenoxazine-4,11-disulfonic acid