Description 性状
本品白色结晶性粉末,无臭。
Fine white crystalline odorless powder, Has a slightly bitter taste followed by a sense of numbness.
符合规定
Complies
Solubility 溶解性
在水中易溶,在乙醇中溶解,乙醚和苯中不溶 Very soluble in water, soluble in alcohol, insoluble in ether and in benzene
鉴别 Identification
A.红外应与对照品一致
By IR, should be corresponds to the standard solution.
B. 应显氯化物的鉴别反应
Should identify significant chloride reaction
C. 含量测定项下,样品中主峰的保留时间与对照品 一致
The retention time of the major peak of the sample solution corresponds to that of the Standard solution, as obtained in tha Assay.
Heavy metal
重金属
≤10ppm
Residue on ignition 炽灼残渣
≤ 0.1%
0.06%
Related Substances 有关物质
Aminobenzoic acid ≤ 0.4%
Related compound B ≤ 0.4%
Related compound C ≤ 0.4%
Individual unspecified impurity ≤ 0.4%
Total impurity ≤ 0.8%
Not detected
0.044%
0.024%
0.054%
0.32%
水分 Water
≤2.0%
0.10%
熔点 Melting range
About 148℃
148℃~149℃
残留溶剂 Residual Solvents
乙醇 Ethanol≤0.5%
0.043%
丙酮 Acetone≤0.5%
未检出Not detected
甲苯 Toluine ≤ 0.089%
含量 Assay
98.0~102.0%
99.62%
结论 Conclusion
The Sample Complies With Specification of USP43
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