1. Purine Bases and Pyrimidine Bases (4) (DE-413)
  2. Purine Base in Beer (GS-320 HQ)
  3. Nucleotides (2) (GS-320 HQ)
  4. Nucleosides (1) (GS-320 HQ)
  5. Adenine Nucleotides in Red Blood Cell
  6. Purine Bases, Pyrimidine Bases and Nucleosides (1) (DE-613)
  7. Purine Bases, Pyrimidine Bases and Nucleosides (2) (NN-814)
  8. Bases, Nucleosides and Nucleotides
  9. Purine Bases and Pyrimidine Bases (3) (DE-613)
  10. Guanine and TryptophanGuanine and Tryptophan (DM-614, NN-814 and DE-613)