单词 pyrimidine 释义 pyrimidine Chem.|prmdin, par-|Also † -in.[ad. G. pyrimidin (A. Pinner 1885, in Ber. d. Deut. Chem. Ges. XVIII. 760) f. pyridin pyridine with inserted -im (f. imid imide).]A colourless, crystalline basic solid, CH:NCH:NCH:CH ; any su...