Piperacillin impurity 95 CAS CATO-C4X-173295
| CAS No. | CATO-C4X-173295 |
| Molecular Formula | C23H29N5O8S |
| Molecular Weight | 535.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Piperacillin impurity 95 (C23H29N5O8S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Piperacillin impurity 95 (CAS CATO-C4X-173295) is a certified pharmaceutical impurity reference standard with the molecular formula C23H29N5O8S and a molecular weight of 535.57 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Piperacillin impurity 95 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 | 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 Sodium - Impurity B (Freebase) (CAS 2649505-14-4)
- Piperacillin Monohydrate EP Impurity B (CAS 64817-22-7)
- Piperacillin EP Impurity M (CAS 64844-70-8)
- Piperacillin impurity 94 (CAS CATO-C4X-173294)
- 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)
Recommended Standards
- Baloxavir defluorinated Impurity 87 (CAS CATO-C4X-210887)
- Cefminox Impurity 20 (CAS CATO-C4X-192620)
- Cefminox Impurity 21 (CAS CATO-C4X-192621)
- Cefminox Impurity 7 (CAS CATO-C4X-19267)
- Celecoxib Impurity 12 (CAS 1061214-09-2)
- Ritonavir Impurity N11 (CAS 2519851-81-9)
- Ribavirin Impurity 11 (CAS 39925-10-5)
- 2,5-dioxo-2,5-dihydrofuran-3-sulfonyl chloride (CAS 40336-86-5)
- (2-Amino-4,6-dichloropyrimidin-5-yl)methanol (CAS 850554-81-3)
- N'-(2-Cyanoacetyl)benzohydrazide (CAS 16501-75-0)
- Tert-butyl 5-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazole-1-carboxylate (CAS 631909-46-1)
- N1,N12-Diacetylspermine hydrochloride (CAS 77928-71-3)
- 2-(6-bromo-8-fluoro-3-quinolyl)acetonitrile (CAS 2306274-61-1)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
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