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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:etidronic acid
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Accession:CHEBI:4907 term browser browse the term
Definition:A 1,1-bis(phosphonic acid) that is (ethane-1,1-diyl)bis(phosphonic acid) having a hydroxy substituent at the 1-position. It inhibits the formation, growth, and dissolution of hydroxyapatite crystals by chemisorption to calcium phosphate surfaces.
Synonyms:exact_synonym: (1-hydroxyethane-1,1-diyl)bis(phosphonic acid)
 related_synonym: (1-Hydroxyethylene)diphosphonic acid;   (1-Hydroxyethylidene)bis(phosphonic acid);   (1-Hydroxyethylidene)bisphosphonic acid;   (1-Hydroxyethylidene)diphosphonic acid;   (Hydroxyethylidene)diphosphonic acid;   1,1,1-Ethanetriol diphosphonate;   1-Hydroxy-1,1-diphosphonoethane;   1-Hydroxyethane-1,1-bisphosphonic acid;   1-Hydroxyethane-1,1-diphosphonate;   1-Hydroxyethane-1,1-diphosphonic acid;   1-Hydroxyethanediphosphonic acid;   1-Hydroxyethylidene-1,1-bisphosphonate;   1-Hydroxyethylidene-1,1-diphosphonic acid;   Acetodiphosphonic acid;   EHDP;   Ethane-1-hydroxy-1,1-diphosphonate;   Ethane-1-hydroxy-1,1-diphosphonic acid;   Etidronsaeure;   Formula=C2H8O7P2;   HEDP;   Hydroxyethanediphosphonic acid;   InChI=1S/C2H8O7P2/c1-2(3,10(4,5)6)11(7,8)9/h3H,1H3,(H2,4,5,6)(H2,7,8,9);   InChIKey=DBVJJBKOTRCVKF-UHFFFAOYSA-N;   Oxyethylidenediphosphonic acid;   SMILES=CC(O)(P(O)(O)=O)P(O)(O)=O;   acide etidronique;   acido etidronico;   acidum etidronicum;   ethane-1-hydroxy-1,1-bisphosphonic acid;   etidronate
 alt_id: CHEBI:63588
 xref: CAS:2809-21-4;   DrugBank:DB01077;   Drug_Central:1098;   HMDB:HMDB0015210;   KEGG:C07736;   KEGG:D02373;   LINCS:LSM-5508
 xref_mesh: MESH:D012968
 xref: PDBeChem:911;   PMID:10385693;   PMID:11503828;   PMID:17157266;   PMID:17214981;   PMID:18313802;   PMID:18646327;   PMID:22515905;   PMID:7858370;   Patent:US3159581;   Patent:US3400147;   Patent:US3468935;   Patent:US3475486;   Reaxys:1789291;   Wikipedia:Etidronic_acid
 cyclic_relationship: is_conjugate_acid_of CHEBI:77356

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etidronic acid term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Mgp matrix Gla protein increases expression EXP Etidronic Acid results in increased expression of MGP mRNA CTD PMID:17270170 NCBI chr 4:170,856,783...170,860,105
Ensembl chr 4:170,856,751...170,860,225
JBrowse link
G Nr1i2 nuclear receptor subfamily 1, group I, member 2 increases activity ISO Etidronic Acid results in increased activity of NR1I2 protein CTD PMID:25455453 NCBI chr11:65,022,100...65,058,546
Ensembl chr11:65,022,100...65,058,545
JBrowse link
G Tnf tumor necrosis factor multiple interactions ISO Etidronic Acid inhibits the reaction [Polyethylene affects the secretion of TNF protein] CTD PMID:10413987 NCBI chr20:5,189,382...5,192,000
Ensembl chr20:5,189,390...5,192,000
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19816
    role 19764
      chemical role 19288
        ligand 5759
          chelator 5736
            etidronic acid 3
Path 2
Term Annotations click to browse term
  CHEBI ontology 19816
    subatomic particle 19814
      composite particle 19814
        hadron 19814
          baryon 19814
            nucleon 19814
              atomic nucleus 19814
                atom 19814
                  main group element atom 19702
                    p-block element atom 19702
                      p-block molecular entity 19702
                        pnictogen molecular entity 18674
                          phosphorus molecular entity 9569
                            phosphorus oxoacids and derivatives 9556
                              phosphonic acids 4116
                                1,1-bis(phosphonic acid) 1676
                                  etidronic acid 3
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