tetrodotoxin

initialism: TTX
synonym: 4R,4aR,5R,6S,7S,8S,8aR,10S,12S)-2-azaniumylidene-4,6,8,12-tetrahydroxy-6-(hydroxymethyl)-2,3,4,4a,5,6,7,8-octahydro-1H-8a,10-methano-5,7-(epoxymethanooxy)quinazolin-10-olate
https://doi.org/10.1351/goldbook.12133
Neurotoxin that inhibits action potentials by blocking sodium ion channels.
Note: It is produced by bacteria living in symbiosis with fish of the order Tetraodontiformes, including trigger fish and puffer fish.
Source:
PAC, 2015, 87, 841. (IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)) on page 911 [Terms] [Paper]