branes ??? ??? ??? biphenols derivatives of phelnol that contain two phenolic groups connected by a bridge ??? ??? ??? halogens particularly iodine and chlorine are effective antimicrobial agents ??? ??? ??? tincture solution in aqueous alcohol and is an iodophor ??? ??? ??? iodophor combination of iodine and an organic molecule from which the iodine is released slowly ??? ??? ??? chlorine produce