3,3'-Dithiobis(2-amino-N-2-naphthylpropionamide) 4708-24-1 Cystine, di-2-naphthylamide Cystine, di-beta-naphthylamide N,N'-Di-2-naphthyl-L-cystinediamide Propionamide, 3,3'-dithiobis(2-amino-N-(2-naphthyl)-