Complex sentence: Thiotimoline is a fictitious chemical compound conceived by science fiction author Isaac Asimov and first described in a spoof scientific paper titled "The Endochronic Properties of Resublimated Thiotimoline" in 1948.
Split into simpler sentences: Thiotimoline is a fictitious chemical compound conceived by science fiction author Isaac Asimov. It was first described in a spoof scientific paper titled "The Endochronic Properties of Resublimated Thiotimoline" in 1948.