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. Author manuscript; available in PMC: 2021 Jan 7.
Published in final edited form as: Comput Toxicol. 2019 Nov 1;12:10.1016/j.comtox.2019.100096. doi: 10.1016/j.comtox.2019.100096

Fig. 3.

Fig. 3.

Most commonly encountered cases of “Predecessor” substance records, with either no CAS RN or no structure, mapped to a corresponding “Successor” substance containing a CAS RN and structure.