Sodium Cromoglicate Impurity 24 CAS CATO-C4X-201124
| CAS No. | CATO-C4X-201124 |
| Molecular Formula | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Sodium Cromoglicate Impurity 24 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Sodium Cromoglicate Impurity 24 (CAS CATO-C4X-201124) is a certified pharmaceutical impurity reference standard with the molecular formula C21H18O9 and a molecular weight of 414.36 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Sodium Cromoglicate Impurity 24 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 414.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Sodium Standards
- Sodium Cromoglicate Impurity 5 (CAS CATO-C4X-20115)
- Sodium Cromoglicate Impurity 18 (CAS CATO-C4X-201118)
- Sodium Cromoglicate Impurity 27 (CAS CATO-C4X-201127)
- Sodium Cromoglicate Impurity 7 (CAS CATO-C4X-20117)
- Sodium Cromoglicate Impurity 25 (CAS 40786-63-8)
- Sodium Cromoglicate Impurity 30 (CAS CATO-C4X-201130)
- Sodium Cromoglicate Impurity 14 (CAS CATO-C4X-201114)
- Sodium Cromoglicate Impurity 19 (CAS CATO-C4X-201119)
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