百科词条

U：尿嘧啶（uracil）

尿嘧啶 uracil U smiles C1=CNC =O NC1=O $结构式：$ - Beilstein tikz \usepackage chemfig \begin document \chemfig N - 4,0.3,,,transparent 1 6 - - 7,0.3,,,transparent 2 =O -N - ,0.3,

作者：admin

2026-08-16

称谓

尿嘧啶 uracil U

3D结构

C1=CNC(=O)NC1=O

$结构式：$

• Beilstein

\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[4,0.3,,,transparent]1)**6(
		-(-[7,0.3,,,transparent]2)(=O)
		-N(-[,0.3,,,transparent]3)
		-(-[,0.3,,,transparent]4)
		-(-[,0.3,,,transparent]5)
		-(-[4,0.3,,,transparent]6)(=O)
		-
	)
} 
\end{document}

\usepackage{chemfig}
\begin{document}
\chemfig[atom sep=2em,cram width=2pt]{
	(H-[2,0.4,,,transparent]N
		*6(-(=O)-[,,,1]NH-(=O)-=-)
	)
}
\end{document}

\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[6,0.3]H)-[0.7,0.5](=[7.3,0.5]O)
	-[2,0.5]N(-[,0.3]H)
		-[3.3,0.5](=[2,0.5]O)
			-[4.7,0.5]
				=[6,0.5]
					-[7.3,0.4]
} 
\end{document}

\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[6,0.3]H)-[0.7,0.6](=[7.3,0.6]O)
	-[2,0.6]N(-[,0.3]H)
		-[3.3,0.6](=[2,0.6]O)
			-[4.7,0.6]
				=[6,0.6]
					-[7.3,0.4]
} 
\end{document}

形成的核苷酸

\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[4,0.3,,,transparent]1)**6(
		-(-[7,0.3,,,transparent]2)(=O)
		-N(-[0,0.3,,,transparent]3)(-Sugar)
		-(-[,0.3,,,transparent]4)
		-(-[,0.3,,,transparent]5)
		-(-[4,0.3,,,transparent]6)(=O)
		-
	)
} 
\end{document}

\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[3,0.3,,,transparent]1)(-[4]H)*6(
		-(-[7,0.3,,,transparent]2)(=O)
		-N(-[0,0.3,,,transparent]3)(-Sugar)
		-(-[,0.3,,,transparent]4)
		=(-[,0.3,,,transparent]5)
		-(-[4,0.3,,,transparent]6)(=O)
		-
	)
}
\end{document}