All

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 D01 Inorganic Chemicals D007287 +
  D01.695 Phosphorus Compounds D017553 +
   D01.695.550 Phosphoranes D010753 
 D02 Organic Chemicals D009930 +
  D02.705 Organophosphorus Compounds D009943 +
   D02.705.671 Phosphoranes D010753