Characteristic: Pure white crystalline powder, slightly hygroscopic.
CAS Number: 15307-79-6
Molecular Formula: C14H10Cl2NNaO2
Certificate Of Analysis: BP2004 Edition
Production methods : o-chlorotoluene as raw material, derived by the following steps.
Application : for the goods potent antipyretic analgesic anti-inflammatory drug. Its anti-inflammatory effect of indomethacin in a range of 2-2.5 times stronger than aspirin 26-50 times. In rheumatoid arthritis, osteoarthritis, post-operative pain and various causes of fever.
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Item |
Standard |
Test Result |
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Characteristic |
Pure white crystalline powder, slightly hygroscopic |
Conforms |
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Solubility |
Sparingly soluble in water, freely soluble in |
Comforms |
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methanol, ethanol (96%); slightly soluble in acetone; |
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practically insoluble in ether |
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Identify |
(A) IR-Spectrum |
（A）conforms |
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(B) Reaction of sodium salt |
（B）Positive |
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PH |
6.5~7.5 |
7.13 |
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Appearance of solution |
Clear |
Conforms |
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Absorption of sodium salt≤0.05 |
0.015 |
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Related substances |
Single impurity ≤0.2% |
Conforms |
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Total impurity ≤0.5% |
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Heavy metal |
≤10ppm |
Conforms |
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Loss on drying |
≤0.5% |
0.21% |
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Assay |
99.0%～101.0% |
99.46% |