Synonyms : Iberiotoxin, Buthus tamulus;Pyr-Phe-Thr-Asp-Val-Asp-Cys-Ser-Val-Ser-Lys-Glu-Cys-Trp-Ser-Val-Cys-Lys-Asp-Leu-Phe-Gly-Val-Asp-Arg-Gly-Lys-Cys-Met-Gly-Lys-Lys-Cys-Arg-Cys-Tyr-Gln-OH (Disulfide bonds between Cys7 and Cys28/Cys13 and Cys33/ Cys17 and Cys35);Iberiotoxin;