Acetazolamide EP Impurity F

Chemical Name: N-[5-[(5-Acetamido-1,3,4-thiadiazol-2-yl)sulfonyl]sulfamoyl-1,3,4-thiadiazol-2-yl]acetamide (as per EP) N,N′-{5,5′-[(Hydrosulfonylamino)sulfonyl]bis(1,3,4-thiadiazole-5,2-diyl)}diacetamide (as per USP)