Furagin-13C3 (Furazidine-13C3) is the 13C-labeled Furagin (HY-77036). Furagin (Furazidine), an analogue of Nitrofurantoin (HY-A0090), is an antibiotic with antibacterial activity against ESKAPE pathogens with MIC values of 0-32 µg/mL. Furagin inhibits human Carbonic anhydrases . Furagin is promising for research of cancer and urinary tract infections (UTIs)[1][2][3][4][5].