minodronic acid minodronic acid minodronic acid is a third-generation bisphosphonate drug. it is approved for use in japan for the treatment of osteoporosis. its mechanism of action involves inhibition of farnesyl pyrophosphate synthase activity. not to be confused with mildronate or medronate. minodronic acid names preferred iupac name pyridin-3-yl)ethane-1,1-diyl]bis(phosphonic acid) other names minodronate; ym 529 identifiers cas number 180064-38-4 y155648-60-5 (monohydrate) y 3d model (jsmol) interactive image chembl chembl319144 y chemspider 115805 y iuphar/bps 3164 pubchem cid 130956 unii 40sgr63tgl y457x74v7nd (monohydrate) y comptox dashboard (epa) dtxsid4048779 inchi inchi=1s/c9h12n2o7p2/c12-9(19(13,14)15,20(16,17)18)5-7-6-10-8-3-1-2-4-11(7)8/h1-4,6,12h,5h2,(h2,13,14,15)(h2,16,17,18) ykey: vmmkghqpqiegsq-uhfffaoysa-n y smiles o=p(o)(o)c(o)(p(=o)(o)o)cc1cnc2ccccn12 properties chemical formula c9h12n2o7p2 molar mass 322.150 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references