Parabolan (CAS No.: 23454-33-3) is the brand name and trade name for the anabolic steroid Trenbolone Hexahydrobenzylcarbonate, commonly and informally abbreviated as Tren Hex or Trenbolone Hex. It is a longer acting esterified variant of the anabolic steroid Trenbolone, which is the most popular in the form of Trenbolone Acetate (a much faster acting esterified variant of Trenbolone). Parabolan Benefits …