Cinitapride Impurity 22 CAS CATO-C4X-290822
| CAS No. | CATO-C4X-290822 |
| Molecular Formula | C21H32N4O5 |
| Molecular Weight | 420.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 420.50 g/mol gives Cinitapride Impurity 22 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Cinitapride Impurity 22 (CAS CATO-C4X-290822), a pharmacopoeial impurity reference standard (molecular formula C21H32N4O5, MW 420.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cinitapride Impurity 22 (C21H32N4O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 420.50 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C21H32N4O5 |
| Molecular Weight | 420.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Cinitapride Standards
- Cinitapride Impurity 12 (CAS CATO-C4X-290812)
- Cinitapride impurity 4 (CAS 1361312-48-2)
- Cinitapride Impurity 36 (CAS 907969-40-8)
- Cinitapride Impurity 20 (CAS CATO-C4X-290820)
- Cinitapride Impurity 21 (CAS CATO-C4X-290821)
- Cinitapride Impurity 28 (CAS CATO-C4X-290828)
- Cinitapride (CAS 66564-14-5)
- Cinitapride Impurity 35 (CAS CATO-C4X-290835)
Recommended Standards
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- Quinapril EP Impurity D (CAS 103733-49-9)
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- Rivastigmine Impurity N2 (CAS 894079-42-6)
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- Insulin B (22-25) (CAS 34367-73-2)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com