Synonyms: ConotoxinG I, 4-L-histidine-9-L-lysine-11-L-phenylalanine-;29,6-(Iminopropanodithiomethano)-1H-pyrrolo[2,1-b1][1,2,5,8,11,14,17,20,23,26,29,32]dithiadecaazacyclopentatriacontine,cyclic peptide deriv.; L-Cysteinamide, L-a-glutamyl-L-cysteinyl-L-cysteinyl-L-histidyl-L-prolyl-L-alanyl-L-cysteinylglycyl-L-lysyl-L-histidyl-L-phenylalanyl-L-seryl-,cyclic (2®7),(3®13)-bis(disulfide)