What is it?
Thiamin was first discovered in 1910 by Umetaro Suzuki in Japan when researching how rice bran cured patients of beriberi. He named it aberic acid (later oryzanin). He did not determine its chemical composition, nor that it was an amine. It was first crystallized by Jansen and Donath in 1926 (they named it aneurin, for antineuritic vitamin).
Its chemical composition and synthesis was finally reported by Robert R. Williams in 1935.
This supplement, also known as vitamin B1 and aneurine hydrochloride, is one
of the B vitamins. It is colorless chemical compound with a chemical formula C12H17N4OS. It is soluble in water, methanol, and glycerol and practically insoluble in acetone, ether, chloroform, and benzene. It decomposes if heated. Its chemical structure contains a pyrimidine ring and a thiazole ring.
More than Thiamin is discussed back at the Natural Source Vitamins Homepage