BoraSol-MU® (Disodium Octaborate Tetrahydrate) has been approved by the EPA (Reg. No. 69529-1) as an active ingredient in a formulated EPA pesticide. Since it can only be used in formulated pesticides, it is only sold to formulators who will use it as the active ingredient in their product. The manufacturer of the enduse product is responsible for obtaining their own EPA registration for their product.