pyrimidine

• 一种具有刺激性气味的杂环有机化合物，也是其多种衍生物中的任何一种，这类衍生物通常存在于核酸中（如胞嘧啶、胸腺嘧啶、尿嘧啶）。

A heterocyclic organic compound with a penetrating odor, and also any of several basic compounds derived from it, commonly found in nucleic acids.

1. Heterocyclic organic compoundC2formalscientific

   A heterocyclic aromatic organic compound with a penetrating odor, consisting of a six-membered ring with two nitrogen atoms.

   杂环有机化合物

   • Pyrimidine is a key building block in the synthesis of many pharmaceuticals.
   • The chemist synthesized a new pyrimidine derivative for the experiment.
   • Pyrimidine has a characteristic penetrating odor.

2. Basic compounds derived from pyrimidineC2formalscientific

   Any of several basic compounds that are derived from the parent pyrimidine molecule, often found in nucleic acids.

   嘧啶类碱性化合物

   • Cytosine, thymine, and uracil are important pyrimidine bases in DNA and RNA.
   • The researcher studied the role of pyrimidine derivatives in cellular metabolism.
   • Pyrimidine compounds are essential for genetic coding.