page_title: Neptunea antiqua
section_title: Food poisoning
hierarchical_section_title: Neptunea antiqua / Food poisoning
caption_attribution_description: Structural formula of tetramethylammonium chloride. Structure drawn in ChemDraw Ultra 11.0.
context_page_description: Neptunea antiqua, common name the red whelk, is a species of Northeast Atlantic sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.
context_section_description: N. antiqua contains tetramethylammonium salts (most likely the chloride) in its tissues, and has been the source of non-lethal human poisoning.
caption: Tetramethylammonium chloride, the principal toxin in red whelks
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