n.
or vitamin B 1
Organic compound, part of the vitamin B complex , necessary in carbohydrate metabolism.
It carries out these functions in its active form, as a component of the coenzyme thiamin pyrophosphate. Its molecular structure includes a substituted pyridine ring and a thiazole ring. Thiamin is found most abundantly in whole cereal grains and certain other seeds. Deficiency leads to beriberi .