Piperacillin EP Impurity M CAS 64844-70-8
| CAS No. | 64844-70-8 |
| Molecular Formula | C23H29N5O8S |
| Molecular Weight | 535.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Piperacillin EP Impurity M.
Piperacillin EP Impurity M (CAS 64844-70-8) is a certified pharmaceutical impurity reference standard with the molecular formula C23H29N5O8S and a molecular weight of 535.57 g/mol.
Based on its molecular formula C23H29N5O8S, Piperacillin EP Impurity M contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 535.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Piperacillin EP Impurity M 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 | C23H29N5O8S |
| Molecular Weight | 535.57 g/mol |
| Purity | >90% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Piperacillin Standards
- Piperacillin Sodium - Impurity B (Freebase) (CAS 2649505-14-4)
- Piperacillin Monohydrate EP Impurity B (CAS 64817-22-7)
- Piperacillin impurity 94 (CAS CATO-C4X-173294)
- Piperacillin impurity 95 (CAS CATO-C4X-173295)
- Piperacillin Impurity 91 (CAS CATO-C4X-173291)
- Piperacillin impurity 99 (CAS CATO-C4X-173299)
- Piperacillin Impurity 51 (CAS CATO-C4X-173251)
- Piperacillin Impurity 27 (CAS 67275-27-8)
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