title: Isolation and structural elucidation of an ichthyocrinotoxin from the smooth trunkfish (Lactophrys triqueter Linnaeus).
abstract: An ichthyocrinotoxin has been isolated from the skin secretion of the smooth trunkfish, Lactophrys triqueter Linnaeus (family Ostraciidae). A crystalline toxin was isolated and identified as the choline chloride ester of palmitic acid. The toxin has a minimum lethal concentration of 2 ppm and an LC50 of 3.5 ppm using mosquito fish as the test organism. A trace quantity of the choline ester chloride of heptadecanoic acid was identified as a minor component of the toxin.
mesh_terms: D000818:Animals; D002794:Choline / Q000031:analogs & derivatives* / Q000302:isolation & purification / Q000633:toxicity; D005399:Fishes / Q000378:metabolism*; D008387:Marine Toxins / Q000302:isolation & purification* / Q000633:toxicity; D013058:Mass Spectrometry
chemical_list: D008387:Marine Toxins; C032703:palmitoylcholine; D002794:Choline