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The title compound, C 21 H 33 BrO 3 , an inter­mediate in the synthesis of the neuromuscular blocking agent rocuronium bromide, contains two independent mol­ecules in the asymmetric unit, which have almost identical geometries: in both mol­ecules, the steroidal rings  A ,  B  and  C  have slightly flattened chair conformations and ring  D  assumes a half-chair conformation. In the crystal, O—H⋯O hydrogen bonds and weak C—H⋯O and C—H⋯Br inter­actions help to establish the packing.

16α-Bromo-17β-hydroxy-5α-androstan-3β-yl acetate