Chemical name: 3-(5-nitrofurfurylideneamino)-2-oxazolidone
Structural formula:

Molecular formula:C₈H₇N₅O₃
Molecular weight: 225.16
Property: Yellow crystalline powder,odorless,first it's tasteless and then lightly bitter,it will turn dark in strong light, it will melt and decompose at 255-259℃. It is almost insoluble in water and ethanol, slightly soluble in chloroform and soluble in dimethyl formamide. Its solubility in water is 60mg/L when pH is 6,the PH of its saturated water solution is 4.5-7.0, it will be easily decomposed in alkaline.
Specification:
      A: Accord with the drug standard of the Ministry of Health of PRC (1989 edition)
   Appearance:yellow crystal powder
   Assay:97.0~103.0%
   Acidity: 5.5~7.0
   Loss on drying:Not more than 0.5%
   Residue on ignition:Not more than 0.2%
   B:Accord with British Pharmacopoeia (2001)edition
   Appearance:yellow crystal powder
   Assay:97.0~103.0%
   Acidity:4.5~7.0
   Loss on drying:Not more than 0.5%
   Sulphated ash:Not more than 0.1%
   C:Accord with the usp29th edition
   Assay:97.0~103.0%
   Acidity:4.5~7.0
   Loss on drying:Not more than 1.0%
   Reidue on ignition:Not more than 0.25%
Use: Anti-bacteria, resist the fungi and protobiont.
Registered number of approval: National drug standard H37022914