Casimir Funk. He was a Polish biochemist and is generally credited with being the first to formulate the concept of vitamins. He called them "vital amines" or "vitamines". It derives from the Latin 'vita' = life, plus amin from amine.
Retinol is another name for vitamin A.
Vitamin B3 is Niacin
The name for Vitamin H is Biotin.
Vitamin C
cholecalciferol
The chemical name of Vitamin E is tocopherol.
Another name for riboflavin is vitamin B2.
Vitamin D2 is ergocalciferol and Vitamin D3 is cholecalciferol.
vitamin B9
the vitamin b is mabaho
Vitamin A is also known as Retinol
Menadione is another name for vitamin K.