27816-59-7 (FREE ACID) 4-Isothiocyanato-4'-acetylamino-stilbine-2,2'-disulfonic acid 51023-76-8 (DISODIUM SALT, HYDRATE) AIDS-002741 AIDS002741 Benzenesulfonic acid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]- IADS NSC328387 (FREE ACID) SITS