trans-4,4'-diaminostilbene-2,2'-disulfonic acid 、
sodium hydroxide 、
异氰酸苯酯 以
水 为溶剂,
反应 57.5h,
以to give the title compound as a beige solid (31.7 g, 78%)的产率得到disodium;N-[4-[(E)-2-[4-[(C-oxido-N-phenylcarbonimidoyl)amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-N'-phenylcarbamimidate