5β-Androsterone Sulfate Sodium Salt-d5 is labelled 5β-Androsterone Sulfate Sodium Salt (A637770) which is a derivative of 5β-Androsterone (A637630). 5β-Androsterone is a metabolite of Testosterone (T155000). β-Androsterone is a stereoisomer of Androsterone (A637535). 5β-Androsterone showed a weak estrogenic action.