Product Brief Introduction
Product name: Cromolyn Sodium
CAS: 15826-37-6
MF: C23H14Na2O11
MW: 512.33
Product Specification
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Item |
Specification |
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Appearance |
White or off-white crystalline powder, hygroscopic |
|
Identification |
IR: The infrared absorption spectrum of the sample complies with the reference standard. |
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The retention time of the major peak of the Sample solution corresponds to that of the Standard solution |
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|
Meet the test<191> |
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Solubility |
Soluble in water; insoluble in alcohol and in chloroform. |
|
Moisture |
≤ 10.0% |
|
Limit of Oxalate |
The absorbance of the sample solution is NLT that of the standard solution (≤ 0.35% of oxalate). |
|
Related Substances(HPLC) |
Cromolyn tricarboxylic acid analog≤ 0.25% |
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2-Acetylresorcinol≤ 0.10% |
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Cromolyn related compound A≤ 0.10% |
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Cromolyn related compound B≤ 0.10% |
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Other unspecified impurity ≤ 0.1% |
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Total impurities ≤ 0.5% |
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Heavy Metals |
≤ 20ppm |
|
Residual Solvents |
Ethanol≤0.5 % |
|
Assay(on dried basis) |
98.0% - 101.0% |
