Pimecrolimus Impurity 3 CAS CATO-C4X-17313
| CAS No. | CATO-C4X-17313 |
| Molecular Formula | C43H68ClNO11 |
| Molecular Weight | 810.45 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 810.45 g/mol gives Pimecrolimus Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Pimecrolimus Impurity 3 (CAS CATO-C4X-17313, C43H68ClNO11) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Pimecrolimus Impurity 3 (C43H68ClNO11) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Pimecrolimus Impurity 3 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.
Physical & Chemical Properties
| Molecular Formula | C43H68ClNO11 |
| Molecular Weight | 810.45 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Pimecrolimus Standards
- Pimecrolimus (CAS 137071-32-0)
- Pimecrolimus Impurity 12 (CAS CATO-C4X-173112)
- Pimecrolimus Impurity 13 (CAS CATO-C4X-173113)
- Pimecrolimus Impurity 14 (CAS CATO-C4X-173114)
- Pimecrolimus Impurity 16 (CAS CATO-C4X-173116)
- Pimecrolimus Impurity 17 (CAS CATO-C4X-173117)
- Pimecrolimus Impurity 19 (CAS CATO-C4X-173119)
- Pimecrolimus Impurity 2 (CAS CATO-C4X-17312)
Recommended Standards
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