Vitamins and Chemical Name

Vitamin A ------ Retinol
Vitamin B1 -----Thiamine
Vitamin B2 -----Riboflavin
Vitamin B3 -----Niacin
Vitamin B5 -----Pantothenic acid
Vitamin B6 -----Pyridoxine
Vitamin B7 -----Biotin
Vitamin B9 -----Folic acid
Vitamin B12 ----Cobalamins
Vitamin C ------Ascorbic acid 
Vitamin D ------Calciferol
Vitamin E ------Tocopherol
Vitamin K ------Phylloquinone / Phytol naphthoquinone