(3α,5β,12α)-3-(Benzoyloxy)-12-[(methylsulfonyl)oxy]-cholan-24-oic Acid Methyl Ester is an intermediate in the synthesis of 3α,12α-Dihydroxy-5β-chol-9(11)-enic Acid which is used in the analysis and in the structure determination of unsaturated 5β-cholanoic acids.