It is a heterocyclic compound, containing a pyridine ring; its chemical formula is C10H14N. Nicotine is the chief addictive ingredient (see drug addiction) in cigarettes and cigars and in snuff.
尼古丁为杂环化合物,含啶环,化学式为C10H14N,是纸烟、雪茄和鼻烟中的主要上瘾成分。
Triazine is a type of heterocyclic organic compounds, it is important to ring nitrogen organic chemical raw materials.
是一种三嗪类含氮杂环有机化合物,重要的氮杂环有机化工原料。
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
嘌呤:嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
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