Multiple choice

Which among the following is a provitamin of vitamin B5?

  1. Panthenol

  2. Cyanocobalamin

  3. Prosultiamine

  4. Pyridoxal-phosphate

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A Correct answer
Explanation

Panthenol is the alcohol analog of pantothenic acid (vitamin B5), and is thus a provitamin of B5. Panthenol is a highly viscous transparent liquid at room temperature. It is soluble in water, alcohol and propylene glycol, soluble in ether and chloroform, and slightly soluble in glycerin.

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