title: Mass spectra of trimethylsilyl derivatives of pyrimidine and purine bases.
mesh_terms: D013058:Mass Spectrometry; D008745:Methylation; D009705:Nucleosides; D011687:Purines; D011743:Pyrimidines; D012825:Silicon; D013057:Spectrum Analysis
chemical_list: D009705:Nucleosides; D011687:Purines; D011743:Pyrimidines; D012825:Silicon