Pantothenic acid, also called pantothenate or vitamin B5 (a B vitamin), is a water-soluble vitamin. For many animals, pantothenic acid is an essential nutrient. Animals require pantothenic acid to synthesize coenzyme-A (CoA), as well as to synthesize and metabolize proteins, carbohydrates, and fats. Pantothenic acid is the amide between pantoic acid and β-alanine. Its name derives from the Greek pantothen (), meaning “from everywhere”, and small quantities of pantothenic acid are found in nearly every food, with high amounts in avocado, whole-grain cereals, legumes, eggs, meat, royal jelly, and yogurt. It is commonly found as its alcohol analog, the provitamin panthenol (pantothenol), and as calcium pantothenate. Pantothenic acid is an ingredient in some hair and skin care products. Pantothenic acid was discovered by Roger J. Williams in 1933.