It is Nandrolone Phenylpropionate (the ester releases the compound over approx. 5-7 days versus the 2-3 weeks for decanoate ester). This is typically referred to as Durabolin. Availability from a "legit" company likely isn't going to be good as Nandrolone Decanoate, but should be available if you look hard enough. Some of the underground labs offer this and it can also be purchased as a powder and converted to injectable pretty easily.