53-86-1 Indomethacin 1-(4-chlorobenzoyl)-5-methoxy-2-methylindol-3-ylacetic acid
Name | Indometacin | |
Synonyms | 1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid | |
Molecular Formula | C19H16ClNO4 | |
Molecular Weight | 357.79 | |
CAS Registry Number | 53-86-1 | |
EINECS | 200-186-5 |
Item |
Standard |
Result |
Appearance |
White or yellow crystalline powder |
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% |
Heavy metals |
≤20ppm |
20ppm |
Related solvent |
≤0.5% |
0.5% |
Content |
98.5-100.5% |
99.8% |
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