Alexander Borodin (1883 - 1887) was a Russian composer who made his living as a chemist. He was a member of the group of composers called "The Five" (or "The Mighty Handful") who were dedicated to producing a specifically Russian kind of art music.
He is best known for his symphonies, his two string quartets, and his opera "Prince Igor". The opera contains "The Polovtsian Dances" which is often performed as a stand-alone concert work.