Nedocromil is classified as a benzopyrone. Nedocromil acts as a mast cell stabilizer, inhibits the degranulation of mast cells, prevents release of histamine and tryptase, so preventing the synthesis of prostaglandins and leukotrienes
Nedocromil Basic Information
Chemical Name: Nedocromil
Molecular Formula: C19H17NO7
Formula Weight: 371.34
CAS No.: 69049-73-6
Nedocromil Certificate Of Analysis
Item
Standard
Test Results
Identification
A.H-NMR:Comply with the structure
Complies
B.LC-MS:Comply with the structure
Complies
C.The IR spectrum of sample should be identical with that of reference standard;
Complies
D.HPLC-ESI-MS
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.
Complies
Loss on drying
≤0.5%
0.11%
Heavy metals
≤10 ppm
<10ppm
Sulphated ash
≤0.2%, determined on 1.0 g.
0.009%
Related substances
Unspecified impurities: for each impurity
≤0.10%
<0.10%
Total Impurity
≤1.0%
0.18%
Purity
≥99.0%
99.82%
Assay
99.0%~101.0% (anhydrous substance).
99.9%
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