Vitamin A structure

The structure of Vitamin A was identified as being related to carotenoids, the most familiar of which is carotene, responsible for the orange color of carrots. This discovery advanced the understanding and synthesis of vitamins.
 Paul Karrer Switzerland 1930 Vitamin A structure

The structure of Vitamin A was identified as being related to carotenoids, the most familiar of which is carotene, responsible for the orange color of carrots. This discovery advanced the understanding and synthesis of vitamins.