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[English Name] Indometacin
[Test Method]HPLC
[Purity]≥99%
[CAS No.]53-86-1
[Mol. Formula]C19H16ClNO4
[Mol. Weight]236.27
[Purity]> 99% by HPLC
Indometacin specification
Item |
Standard |
Result |
Appearance |
White or yellow crystalline powder |
Conforms |
Identification |
Positive |
Conforms |
Melting point |
158-162 |
159-160 |
Absorption at 318nm |
170-190 |
185.6 |
Related substances(TLC) |
≤0.5% |
0.5% |
Loss on drying |
≤0.5% |
0.07% |
Sulphated ash |
≤0.1% |
0.03% |
Heavy metals |
≤20ppm |
20ppm |
Related solvent |
≤0.5% |
0.5% |
Content |
98.5-100.5% |
99.8% |
Indometacin picture show:
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