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I am struggling to draw chemical structure using chemfigLinseed oil

thank you.

3

As a starting point:

\documentclass[tikz]{standalone}
\usepackage{chemfig}

\begin{document}

\chemfig{HC
  (-[2,2,2,2]H_2|C-O-[1](=[2,.75]O)-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1]=-[-1]-[1]=-[-1]-[1]-[-1]-[1]-[-1])
  (-[6,1.25,2,2]H_2|C-O-[-1](=[6,.75]O)-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]=-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1])
  -O-[1](=[2,.75]O)-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1]=-[-1]-[1]=-[-1]-[1]=-[-1]-[1]}

\chemfig{HC
  (-[2,2,2,2]H_2|C-O-[1](=[2,.75]O)-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1](-[:60]O-[:-60])--[-1]-[1](-[:60]O-[:-60])--[-1]-[1]-[-1](-[:-60]O-[:60])--[1])
  (-[6,2,2,2]H_2|C-O-[1](=[2,.75]O)-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1](-[:60]O-[:-60])--[-1]-[1]-[-1](-[:-60]O-[:60])--[1]-[-1]-[1]-[-1])
  -O-[1](=[2,.75]O)-[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1](-[:60]O-[:-60])--[-1]-[1]-[-1]-[1]-[-1]-[1]-[-1]-[1]}

\end{document}

enter image description here

enter image description here

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