Synonyms: L-Lysine,L-tryptophyl-L-lysyl-D-cysteinyl-L-a-glutamyl-2,3-didehydroalanyl-L-leucyl-L-cysteinyl-3-mercapto-D-a-aminobutyryl-L-prolylglycyl-L-cysteinyl-L-valyl-3-mercapto-D-a-aminobutyrylglycyl-L-alanyl-L-leucyl-L-glutaminyl-2,3-didehydro-a-aminobutyryl-L-cysteinyl-L-phenylalanyl-L-leucyl-L-glutaminyl-3-mercapto-D-a-aminobutyryl-L-leucyl-3-mercapto-D-a-aminobutyryl-L-cysteinyl-L-asparaginyl-L-cysteinyl-L-lysyl-L-isoleucyl-2,3-didehydroalanyl-,cyclic (3®7),(8®11),(13®19),(23®26),(25®28)-pentakis(sulfide); NSC 404853