Sodium hypochlorite is the only active ingredient that's listed for Clorox. It's 6.05% of the ingredients. I think it used to be more dilute in the past.
Anyway, it could be the staining was not just oil based which detergents should handle but perhaps even waxy. In that case, an organic solvent of some kind would loosen it up. But, then you have to get rid of the solvent in the next phase. I bet taking to a dry cleaner would work.
Anyway, it could be the staining was not just oil based which detergents should handle but perhaps even waxy. In that case, an organic solvent of some kind would loosen it up. But, then you have to get rid of the solvent in the next phase. I bet taking to a dry cleaner would work.