Hardwickiic acid ((-)-Hardwikiic acid) is an antinociceptive compound that blocks Tetrodotoxin-sensitive voltage-dependent sodium channels. Hardwickiic acid shows insecticidal activity[1][2].
[1]. Cai S, et al. (-)-Hardwickiic Acid and Hautriwaic Acid Induce Antinociception via Blockade of Tetrodotoxin-Sensitive Voltage-Dependent Sodium Channels. ACS Chem Neurosci. 2019 Mar 20;10(3):1716-1728. [2]. Bandara BM, et al. Isolation and Insecticidal Activity of (-)-Hardwickiic Acid from Croton aromaticus. Planta Med. 1987 Dec;53(6):575.