Question: Alexander Pavlovich Dianin, was a Russian chemist from Saint Petersburg, and was married to the adopted daughter of fellow chemist Alexander Borodin, was a Russian Romantic composer of Georgian origin, as well as a doctor and chemist, he was one of the prominent 19th century composers, known as what?
Sentence (from "Alexander Dianin"): He carried out studies on phenols and discovered a phenol derivative now known as bisphenol A and the accordingly named Dianin's compound.
Relevant evidence: No