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?
Alexander Dianin Alexander Pavlovich Dianin (Russian: Александр Павлович Дианин ; April 20, 1851 – December 6, 1918) was a Russian chemist from Saint Petersburg. He carried out studies on phenols and discovered a phenol derivative now known as bisphenol A and the accordingly named Dianin's compound. He was married to the adopted daughter of fellow chemist Alexander Borodin. In 1887, Dianin succeeded his father-in-law as a chair of the Chemistry Department at the Imperial Medical-Surgical Academy in St. Petersburg.
Alexander Spendiaryan Alexander Afanasyevich Spendiaryan (Spendiarov) (Armenian: Ալեքսանդր Ստեփանոսի Սպենդիարյան , Russian: Александр Афанасьевич Спендиаров , November 1, 1871, Kakhovka, Russian Empire – May 7, 1928, Yerevan, Armenia) was an Armenian born in Russia, music composer, conductor, founder of Armenian national symphonic music and one of the patriarchs of Armenian classical music. His compositions include the opera "Almast" (Armenian: Ալմաստ ՝ brilliant) and the "Yerevan Etudes," among others.