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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.

Term:A-232 nerve agent
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Accession:CHEBI:140424 term browser browse the term
Definition:A carboxamidine that is N,N-diethylethanimidamide in which the hydrogen attached to the imino nitrogen has been replaced by a fluoro(methoxy)phosphoryl group. A toxic nerve agent developed by the former Soviet Union.
Synonyms:exact_synonym: methyl N-[1-(diethylamino)ethylidene]phosphoramidofluoridate
 related_synonym: A-232;   Formula=C7H16FN2O2P;   InChI=1S/C7H16FN2O2P/c1-5-10(6-2)7(3)9-13(8,11)12-4/h5-6H2,1-4H3;   InChIKey=BBTXAVJVSQSXHZ-UHFFFAOYSA-N;   SMILES=P(=O)(N=C(N(CC)CC)C)(OC)F

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Term Annotations click to browse term
  CHEBI ontology 19883
    role 19833
      biological role 19833
        aetiopathogenetic role 19017
          neurotoxin 17643
            A-232 nerve agent 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19883
    subatomic particle 19881
      composite particle 19881
        hadron 19881
          baryon 19881
            nucleon 19881
              atomic nucleus 19881
                atom 19881
                  main group element atom 19771
                    p-block element atom 19771
                      chalcogen 19464
                        oxygen atom 19425
                          oxygen molecular entity 19425
                            hydroxides 19147
                              oxoacid 18286
                                pnictogen oxoacid 10306
                                  phosphorus oxoacid 9226
                                    phosphoric acids 7943
                                      phosphoric acid 7943
                                        phosphoric acid derivative 7624
                                          phosphate 7624
                                            organic phosphate 7623
                                              organic phosphoramidate 0
                                                A-232 nerve agent 0
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