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黄嘌呤（xanthine）

smiles C1=NC2=C N1 C =O NC =O N2 tikz \usepackage chemfig \begin document \chemfig N - 4,0.3 H - 6,0.5 = 4.7,0.5 O - 7.3,0.5 N - 6,0.3 H - 0.8,0.5 = 2,0.5 - 0.5,0.5 N -

作者：admin

2026-08-16

3D结构

C1=NC2=C(N1)C(=O)NC(=O)N2

\usepackage{chemfig}
\begin{document}

\chemfig{
N(-[4,0.3]H)
	-[6,0.5](=[4.7,0.5]O)
	-[7.3,0.5]N(-[6,0.3]H)
	-[0.8,0.5]
	=[2,0.5]
		(
			-[0.5,0.5]N(-[2,0.3]H)
			-[6.55,0.5]
			=[5.25,0.5]N
			-[3.5,0.4]
		)
	-[3.3,0.5](=[2,0.5]O)
	-[4.8,0.3]
}

\end{document}