Appearance: Slightyellow crystal
solubility:Soluble in acetone; sparingly soluble in methonal and in ethanol; insoluble in water
Identification: IR
Melting Range:112.0℃-118℃
Water:NMT1.5%
Related substance(HPLC):
1,4-Naphthaqu1none∶ NMT0.50%
2,3-Dichloro-1,4-naphthaquinone∶ NMT 0.50%
Naphthalene∶NMT 0.50%
Any other individual impurity: NMT1.5%
Total impuritys:NMT3.0%
Assay:95-105%
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