Chemical name: 3-(5-nitrofurfurylideneamino)-2-oxazolidone
Structural formula:
Molecular formula:C₈H₇N₅O₃
CAS-No: 67-45-8
Molecular weight: 225.16
Property: Yellow crystalline powder,odorless,first its 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%
   Dissolved in ethanol:Not more than 0.5%
   Heavy metals:Not more than 20ppm
   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% 
   Nitrofurfural Diacetate:Not more than 0.1%
Use: Anti-bacteria, resist the fungi and protobiont.