Chemical name: 1-[[[5-nitro-2-furanyl]methylene]amino]-2,4-imidazolidinedione
CAS: 67-20-9
Structural formula:

Molecular formula: C₈H₆N₄O₅
Molecular weight: 238.16
Specification: Combined USP with Enterprise standard
Appearance: brown yellow macrocrystalline Powder
Loss on drying: Not more than 1.0%
Sulfated ash: Not more than 0.1%
Speccific surface area: Between 0.045m2/g and 0.20m2/g
Related Substances:
Nitrofurfural Diacetate: Not More Than 0.15%
Nitrofurazone: Not More Than 0.01%
Any other related compounds: Not More Than 0.10%
Total Related Compounds: Not More Than 0.5%
Assay: 98.0% to 102.0% calculated on the dried basis
Acetic acid: Not More Than 1000ppm
Application: Used for urinary tract infections resulted by sensitive bacteria, like pyelonephritis, urinary tract infection, cystitis and prostatitis.