You used to be able to tell the difference by the cap color which Clorox to use with the deep royal blue cap being the unadulterated pure bleach. But about three years ago, Clorox gave up on the different colored caps and all caps became the same color. That was a disservice to their customers. Even the antibacterial Clorox has additives now. The one advantage is that most of those are just buffers to keep it from losing its potency. They went from 7.2% to an 8.4% "Concentrated" formula Clorox too. It doesn't make much difference in the Dakins Solution formulation though. If you worry about it, use 24 to 1 water to Clorox to make the solution.
The one we get is marked on the front of the jug in big
block letters “ANTIBACTERIAL”. The ingredient label is
also not marked with anything added. (I suppose it is
possible that they’re being sneaky.) :o(