5HHI:
reference: Synthesis, structure, and biological evaluation of a platinum-carbazole conjugate., Cheun Y, Koag MC, Naguib YW, Ouzon-Shubeita H, Cui Z, Pakotiprapha D, Lee S, Chem Biol Drug Des. 2018 Jan;91(1):116-125. doi: 10.1111/cbdd.13062. Epub 2017, Jul 29. PMID: 28649747

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).