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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:64909 term browser browse the term
Definition:Any substance that causes disturbance to organisms by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by the organism.
Synonyms:related_synonym: poisonous agent;   poisonous agents;   poisonous substance;   poisonous substances;   poisons;   toxic agent;   toxic agents;   toxic substance;   toxic substances
 xref: Wikipedia:Poison

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Term Annotations click to browse term
  CHEBI ontology 19810
    role 19758
      biological role 19758
        poison 18079
          2,6-dichlorobenzoquinone 0
          Ala-Eth 0
          Sirius red 4B 0
          Sirius red 4B (acid form) 0
          ammonium molybdate 0
          brilliant green 1
          brilliant green cation + 1
          cassaine 0
          diazomethane 0
          disodium hydrogenarsenate + 0
          disodium hydrogenarsenate heptahydrate 0
          hydrogen cyanide + 2904
          methylarsonous acid 0
          nephrotoxin + 8632
          neurotoxin + 17575
          osmium tetroxide 0
          potassium fluoride 0
          sodium arsenate 1949
          sodium chromate 34
          sodium molybdate (anhydrous) + 1
          sodium molybdate dihydrate 0
          sodium molybdate heptahydrate 0
          sodium molybdate tetrahydrate 0
          sodium nitrite 29
          sodium oxalate 0
          sodium selenide 2
          toxin + 13950
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