Pharmacology General 731cfb8a Drug containing two sulfhydryl groups in a molecule? A BAL B EDTA C Pencillamine D None of the above High-Yield Explanation Ans. is 'a' i.e., BAL o Dimercaprol (British Anti-Lewisite, BAL) contains two sulfahydryl groups. Note - Penicillamine has one SH group.