Piperacillin Impurity 70 (Mixture of Diastereomers) CAS CATO-C4X-173270
| CAS No. | CATO-C4X-173270 |
| Molecular Formula | C24H31N5O8S |
| Molecular Weight | 549.60 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 Piperacillin Impurity 70 (Mixture of Diastereomers) (CAS CATO-C4X-173270), a pharmacopoeial impurity reference standard (molecular formula C24H31N5O8S, MW 549.60 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C24H31N5O8S, Piperacillin Impurity 70 (Mixture of Diastereomers) 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 549.60 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.
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 | C24H31N5O8S |
| Molecular Weight | 549.60 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Piperacillin Standards
- Piperacillin Open-Ring Methyl Ester Impurity 1 (CAS CATO-C4X-173229)
- Piperacillin Open-Ring Methyl Ester Impurity 2 (CAS CATO-C4X-173232)
- Piperacillin Impurity 34 (CAS CATO-C4X-173234)
- Piperacillin Open-Ring Methyl Ester Impurity 3 (CAS CATO-C4X-173297)
- Piperacillin Impurity 20 (CAS CATO-C4X-173220)
- Piperacillin Impurity 37 (CAS CATO-C4X-173237)
- Piperacillin Impurity 90 (CAS CATO-C4X-173290)
- Piperacillin Sodium - Impurity B (Freebase) (CAS 2649505-14-4)
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