1) An antiseptic 2) Antiseptic compound 3) Antiseptic substance 4) Chemical used in antiseptics 5) Compound used as antiseptic 6) Crystalline antiseptic Found on https://www.crosswordclues.com/clue/iodol
I'o·dol noun [ Iodo- + pyrr ol .] (Chemistry) A crystallized substance of the composition C 4 I 4 NH, technically tetra-iodo- pyrrol, used like iodoform. Found on http://www.encyclo.co.uk/webster/I/94