Explanatory notes
… X ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULPHONAMIDES GENERAL The … oxygen or nitrogen, those of metals or other non-metals (such as sulphur, arsenic, lead, iron, etc.) directly linked … in addition to the carbon atoms, atoms of other elements such as oxygen, nitrogen or sulphur. In this way, the …