What is the difference between Vitamin B5 and Coenzyme A?

Vitamin B-5 is a building block of coenzyme A, an important molecule that controls or contributes to cellular processes throughout the body. Coenzyme A alters proteins in the body, changing their activity. It also assists in the synthesis of melatonin, acetylcholine and hemoglobin. Coenzyme A works in the liver to metabolize toxins. It also contributes to metabolism, the process of breaking down food into energy. It operates as a vital molecule in the citric acid cycle, a series of chemical reactions that breaks fats, protein and carbohydrates into oxygen, water and the energy molecule ATP. Without coenzyme A, cellular metabolism would grind to a halt...... Vitamin B5 is also necessary for fat production,according to the World's Healthiest Foods. The body uses a form of vitamin B5 called coenzyme A to synthesizethe cholesterol and fatty acids.

B5 is pantothenic acid
Coenzyme A is a protein enzyme which aids in various reactions in intermediary metabolism (digestion).