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  Tetrodotoxin

Sigma KEE - Tetrodotoxin

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河豚毒素
A Toxin produced by the pufferfish and several other (widely varying) species. The initial symptoms include numbness in the lips and tongue, which spreads throughout the body. The next phase of the poisoning is paralysis, which again spreads throughout the body.
Relationships      
Parents 身体物质 Extracellular material and mixtures of cells and extracellular material that are produced, excreted or accreted by an Organism. Included here are Substances such as saliva, dental enamel, sweat, hormones, and gastric acid.
  复合物质 The Class of Substances that contain two or more elements (ElementalSubstances) in definite proportion by weight. The composition of a pure compound will be invariant, regardless of the method of preparation. Compounds are composed of more than one kind of atom (element). The term molecule is often used for the smallest unit of a compound that still retains all of the properties of the compound. Examples: Table salt (sodium chloride, NaCl), sugar (sucrose, C_{12}H_{22}O_{11}), and water (H_2O).
  毒素 BiologicalAgents that are a toxic BiologicallyActiveSubstance produced by an Organism or that are the synthetic analogue of a toxic BiologicallyActiveSubstance produced by an Organism.


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