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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:methylarsonous acid
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Accession:CHEBI:17826 term browser browse the term
Definition:A one-carbon compound that is arsonous acid in which the hydrogen attached to arsenic is replaced by a methyl group.
Synonyms:related_synonym: Formula=CH5AsO2;   InChI=1S/CH5AsO2/c1-2(3)4/h3-4H,1H3;   InChIKey=OXBIRPQQKCQWGV-UHFFFAOYSA-N;   MMA(III);   MMAIII;   MeAs(OH)2;   Methanearsonous acid;   Methylarsonite;   Monomethylarsonous acid;   SMILES=C[As](O)O;   monomethylarsenous acid
 alt_id: CHEBI:25278;   CHEBI:6866;   CHEBI:90096
 xref: CAS:25400-23-1;   HMDB:HMDB0012259;   KEGG:C07295;   MetaCyc:METHYLARSONITE;   PMID:10698679;   PMID:16581540;   PMID:21193388;   PMID:22398986;   PMID:24091636;   PMID:24915088;   PMID:25092648;   Reaxys:2231128;   UM-BBD_compID:c0772
 cyclic_relationship: is_conjugate_acid_of CHEBI:14597

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Term Annotations click to browse term
  CHEBI ontology 19853
    role 19804
      biological role 19804
        poison 18122
          methylarsonous acid 0
Path 2
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  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      chalcogen 19438
                        oxygen atom 19400
                          oxygen molecular entity 19400
                            hydroxides 19123
                              oxoacid 18256
                                pnictogen oxoacid 10291
                                  arsenic oxoacid 3503
                                    arsonous acids 2
                                      arsonous acid 0
                                        methylarsonous acid 0
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