Chemical name: 2,4-Imidazolidinedione, 1-[[[5-(4-nitrophenyl)-2-furanyl]
methylene]amino]-, sodium salt, hydrate 
Molecular formula: C₁₄H₉N₄NaO₅·3.5H₂O
Molecular weight: 399.29
CAS: 24868-20-0
Structural formula:

Specification:
In-house specification (in accordance with USP)
Appearance: Yellowish-orange to orange crystalline powder.
Water: 14.5～17.0%
Chloride: ≤0.02%
Heavy Metal: ≤20ppm
Assay: 98.0～102.0% of C₁₄H₉N₄NaO₅ on the dried basis.
Impurity A: ≤0.15%
Impurity B: ≤0.40%
Impurity C: ≤0.15%
Any individual unspecified impurity: ≤0.10%
Total impurities: ≤0.60%
 
Packing size: 20Kg/drum
Indications: For spasmodic hypertonia left by upper motor neuron injury caused by various reasons, such as stroke, brain trauma, spinal cord injury, cerebral palsy, multiple cerebrovascular sclerosis.