olsalazine [ CJ-91B,Dipentum,Ipsen Brand of Olsalazine Sodium,Pfizer brand of olsalazine,Rasal,azodisal sodium,azodisalicylate,disodium 5,5'-azodisalicylate,disodium azodisalicylate,olsalazine sodium,olsalazine, disodium salt,sodium diazosalicylate ] cpd with 2 salicylate molecules linked together by an azo bond