Pirarubicin impurity 5 CAS CATO-C4X-24685
| CAS No. | CATO-C4X-24685 |
| Molecular Formula | C32H35NO12 |
| Molecular Weight | 625.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Pirarubicin impurity 5 (CAS CATO-C4X-24685), a pharmacopoeial impurity reference standard (molecular formula C32H35NO12, MW 625.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pirarubicin impurity 5 (C32H35NO12) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 625.62 g/mol, it falls into the 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).
As a certified reference material (CRM), Pirarubicin impurity 5 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 | C32H35NO12 |
| Molecular Weight | 625.62 g/mol |
| Purity | 97%+ |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pirarubicin Standards
- Pirarubicin (CAS 72496-41-4)
- Pirarubicin Impurity 8 (CAS CATO-C4X-24688)
- Pirarubicin Impurity 3 (CAS CATO-C4X-24683)
- Pirarubicin Impurity 2 (CAS CATO-C4X-24682)
- Pirarubicin impurity 6 (CAS CATO-C4X-24686)
- Pirarubicin Impurity 4 (CAS CATO-C4X-24684)
- Pirarubicin Hydrochloride (CAS 95343-20-7)
- Pirarubicin impurity 7 (CAS CATO-C4X-24687)
Recommended Standards
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- Amoxicillin Impurity 46 (CAS CATO-C4X-114846)
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- 2-(2-Hydroxypropan-2-yl)naphtho[2,3-b]furan-4,9-dione (CAS 256341-14-7)
- (2-Chloro-6-(isopropylthio)phenyl)methanamine (CAS 1250604-42-2)
- Idarubicin Hydrochloride Impurity 2 (CAS 1246818-54-1)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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