Nitrofurazone

Chemical name: 5-Nitro-2-furaldehyde semicarbazoneMolecular formula: C₆H₆N₄O₄Molecular weight: 198.14CAS: 59-87-0Structural formula:

Specification:A: In accordance with Drug standard of the Ministry of Health of PRC (1989 edition)Appearance: Bright-yellow crystalline powder.Melting point: 236～240℃pH: 5.5～7.0Chloride: ≤0.014%Sulfate: ≤0.04%Loss on drying: ≤0.5%Residue on ignition: ≤0.1%Assay: 97.0～103.0%Total aerobic microbial count: Not more than 10³cfu/gTotal yeast and mold count: Not more than 10²cfu/gStaphylococcus aureus: Should be absent in 1g.Pseudomonas aeruginosa: Should be absent in 1g.E.coli: Should be absent in 1g.B: In accordance with USPAppearance: Lemon yellow crystalline powder.pH: 5.0～7.5Loss on drying: ≤0.5%Residue on ignition: ≤0.1%Assay: 98.0～102.0% of C₆H₆N₄O₄ calculated on dried substance.(5-nitrofurfural-2-yl) methylene diacetate: ≤0.5%1,2-bis[(5-nitrofuran-2-yl) methylidene] diazane: ≤0.5%Any individual unspecified impurity: ≤0.1%Total impurities: ≤2.0%C: In accordance with EPAppearance: Yellow or brownish-yellow crystalline powder.pH: 5.0～7.0Loss on drying: ≤0.5%Sulfated ash: ≤0.1%Assay（calculated on dried basis）: 97.0～103.0%(5-nitrofurfural-2-yl) methylene diacetate: ≤0.5%1,2-bis[(5-nitrofuran-2-yl) methylidene] diazane: ≤0.5%Any individual unspecified impurity: ≤0.10%Total impurities: ≤2.0%Packing size: 25Kg/drumAuthentication code: Guo Yao Zhun Zi H37022206Indications: disinfectant and antiseptic used for local or surface sterilization.