4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid (disodium)
4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium is a fluorescent dye. 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium can be used to demonstrate retrograde axonal transport to label secondary antibodies and as a fluorescent whole cell stain.