Chlorotoxin is a 36-amino acid peptide found in the venom of the deathstalker scorpion (Leiurus quinquestriatus) which blocks small-conductance chloride channels.
Chlorotoxin(linear) is a linear 36 amino-acid peptide used in Chlorotoxin-related research. Found in the venom of the Egyptian scorpion Leiurus quinquestriatus, it functions as a chloride channel blocker.