<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:10:40 UTC</creation_date>
  <update_date>2025-11-18 23:43:47 UTC</update_date>
  <accession>FDB013352</accession>
  <name>Calcium phosphinate</name>
  <description>Dietary supplement</description>
  <synonyms>
    <synonym>Calcium dihydrogen hypophosphite</synonym>
    <synonym>Calcium hypophosphite</synonym>
    <synonym>Calcium hypophosphite (Ca(H2PO2)2)</synonym>
    <synonym>Calcium phosphinate (Ca(H2PO2)2)</synonym>
    <synonym>Phosphinic acid, calcium salt</synonym>
    <synonym>Phosphinic acid, calcium salt (2:1)</synonym>
  </synonyms>
  <chemical_formula>CaH4O4P2</chemical_formula>
  <average_molecular_weight>170.055</average_molecular_weight>
  <monisotopic_moleculate_weight>169.921072795</monisotopic_moleculate_weight>
  <iupac_name>calcium dihydrogen phosphonite</iupac_name>
  <traditional_iupac>calcium dihydrogen phosphonite</traditional_iupac>
  <cas_registry_number>7789-79-9</cas_registry_number>
  <smiles>[Ca++].OP[O-].OP[O-]</smiles>
  <inchi>InChI=1S/Ca.2H2O2P/c;2*1-3-2/h;2*1,3H/q+2;2*-1</inchi>
  <inchikey>RZMURRYSXHBDEC-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of inorganic compounds known as alkaline earth metal oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal.</description>
    <direct_parent>Alkaline earth metal oxides</direct_parent>
    <kingdom>Inorganic compounds</kingdom>
    <super_class>Mixed metal/non-metal compounds</super_class>
    <class>Alkaline earth metal organides</class>
    <sub_class>Alkaline earth metal oxides</sub_class>
    <molecular_framework/>
    <alternative_parents>
      <alternative_parent>Inorganic calcium salts</alternative_parent>
      <alternative_parent>Inorganic oxides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Alkaline earth metal oxide</substituent>
      <substituent>Inorganic calcium salt</substituent>
      <substituent>Inorganic oxide</substituent>
      <substituent>Inorganic salt</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-1.1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>16.86</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-1.7</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>calcium dihydrogen phosphonite</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>170.055</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>169.921072795</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>[Ca++].OP[O-].OP[O-]</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>CaH4O4P2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/Ca.2H2O2P/c;2*1-3-2/h;2*1,3H/q+2;2*-1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>RZMURRYSXHBDEC-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>43.29</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>10.01</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>4.02</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>physiological_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formal_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
  </pathways>
  <spectra>
  </spectra>
  <hmdb_id/>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
