Mesalazine Impurity 32 CAS CATO-C4X-132432
| CAS No. | CATO-C4X-132432 |
| Molecular Formula | C14H10O7 |
| Molecular Weight | 290.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Mesalazine Impurity 32 (CAS CATO-C4X-132432, C14H10O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Mesalazine Impurity 32 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.23 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H10O7 |
| Molecular Weight | 290.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Mesalazine Standards
- Mesalazine EP Impurity S (CAS 1797983-23-3)
- Mesalazine Unknown Impurity (CAS CATO-CPS-2403001)
- Mesalazine EP Impurity P (CAS 887256-40-8)
- Mesalazine Impurity 57 (CAS CATO-C4X-132457)
- Mesalazine Impurity 2 (CAS 876903-48-9)
- Mesalazine Impurity 44 (CAS 607-87-4)
- Mesalazine Impurity 55 (CAS CATO-C4X-132455)
- Mesalazine Impurity 45 (CAS CATO-C4X-132445)
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