Bis-ANS (4,4'-Dianilino-1,1'-Binaphthyl-5,5'-Disulfonic Acid, Dipotassium Salt)

Anilinonaphthalene sulfonates (ANS) are essentially nonfluorescent in water, only becoming appreciably fluorescent when bound to membranes. This property makes it a sensitive indicator of protein folding, conformational changes and other processes that m