Chapter 29, Problem 39P

Interpretation Introduction

Interpretation:

The vitamin containing a sulfur atom should be identified.

Concept Introduction:

The molecular formula of thiamine is ${\text{C}}_{\text{12}}{\text{H}}_{\text{17}}{\text{N}}_{\text{4}}\text{OS}$. The structure of vitamin contains an aminopyrimidine and a thiazolium ring linked together by methylene bridge. The methyl and hydromethyl side chains are substituted on the thiazole ring.

The molecular formula of biotin is ${\text{C}}_{\text{10}}{\text{C}}_{\text{16}}{\text{N}}_{\text{2}}{\text{O}}_{\text{3}}\text{S}$. The structure of biotin contains a tetrahydrothiophene ring fused with tetrahydrothiophene ring. This is an organic compound containing five-membered 4 carbon atoms and one sulfur atom.