13739-02-1 Diacerein 4,5-Bis(acetyloxy)-9,10-dioxo-2-anthracenecarboxylic acid
Product name |
Diacerein |
Formula |
C19H12O8 |
CAS |
13739-02-1 |
Appearance |
Yellowfine powder |
Test Item | Standards | Results |
Appearance | Yellow crystalline powder | Yellow crystalline powder |
Solubility | Soluble in DMSO, sparingly soluble in DMAC ,Practically insoluble in methanol ethanol acetonitrile and water. | Complies |
PH | 4.5 to 6.0 | 4.9 |
Identification |
A:IR absorption spectrum complies with Reference Standard B:Add 1mol/L sodium hydroxide to sample solution of DMAC ,then turn red C::In assay test retention time of main peak of sample solution complies with that of reference solution |
Complies |
Loss on drying | Not more than 0.5% | 0.2% |
Residue on ignition | Not more than 0.20% | 0.03% |
Heavy metals | Not more than 20ppm | Complies |
Related substances |
Individual impurity:not more than 0.5% Total impurities:not more than 1.0% |
0.38% 0.84% |
Assay (Calculated on dried basis) | 98.0% to 102.0% | 99.8% |
Conclusion | Analyzed ,this product complies with above specification |
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