Sentence Examples


  • The purins themselves may be considered as a combination of the pyrimidine and glyoxaline ring systems. For formulae see below; the numbers about the first ring explain the orientation of pyrimidine derivatives.
  • Pyrimidine, C4H4N2, itself is a water-soluble base which melts at 21° C. and possesses a narcotic smell.
  • For methods of preparation and properties of numerous other pyrimidine compounds see T.
  • N:CH N N:C(CH3) N NH CO NH ' 'CH :CH CH NH2 C :CH C CH 3 CH :CH 0 Pyrimidine Cyanmethine Uracil
  • Pyridine gives origin to: pyridazine or ortho-diazine, pyrimidine or metadiazine, pyrazine or para-diazine, osotriazine, unsymmetrical triazine, symmetrical triazine, osotetrazone and tetrazine.

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