Synonyms: Isophthalamicacid, 5-acetamido-2,4,6-triiodo-N-methyl- (7CI,8CI); 5-Acetamido-2,4,6-triiodo-N-methylisophthalamicacid; 5-Acetylamino-2,4,6-triiodo-N-methyl-3-isophthalamic acid; Cysto ConrayII; Iotalamic acid; Iothalamic acid; MI 216; Methalamic acid