Chemical name: 1-{[(5-nitrofuran-2-yl)methylidene]amino}imidazolidine-2,4-dione
CAS: 67-20-9
Structural formula:
Molecular formula: C8H6N4O5
Molecular weight: 238.16
Authentication code: Guo Yao Zhun Zi H37022205
Specification:
1) EP
Appearance: A yellow crystalline powder or yellow crystals
Assay: 98.0~102.0%
Loss on drying: Not more than 1.0%
Sulphated ash: Not more than 0.1%
Related substance: Not more than 1.0%
2) USP
Appearance: A lemon-yellow crystalline powder.
Assay: 98.0~102.0%
Loss on drying: Not more than 1.0%
Limit of Nitrofurfural Diacetate: not more than 1.0%
Limit of Nitrofurazone: not more than 0.01%
Application: Used for urinary tract infections resulted by sensitive bacteria, like pyelonephritis, urinary tract infection, cystitis and prostatitis.
3) Nitrofurantoin Macrocrystals 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.
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