Alkil Tetraaniline, HT (n=6) : Text Drawing

c-c=c-n-c=c-c-n-c-c=c-n-c=c-c-n-c=c-c-n-c-c-c-c-c-c
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c-c=c   c=c-c   c-c=c   c=c-c   c=c-c   o