DL-Piperacillin EP Impurity I CAS 158411-82-6
| CAS No. | 158411-82-6 |
| Molecular Formula | C6H11NO3S |
| Molecular Weight | 177.22 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 DL-Piperacillin EP Impurity I (CAS 158411-82-6), a pharmacopoeial impurity reference standard (molecular formula C6H11NO3S, MW 177.22 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of DL-Piperacillin EP Impurity I (C6H11NO3S) is characterized by an amide group, a sulfone group, a carboxylic acid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), DL-Piperacillin EP Impurity I 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 | C6H11NO3S |
| Molecular Weight | 177.22 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related DL Standards
- Piperacillin EP Impurity I (CAS 13833-89-1)
- Piperacillin Impurity 26 (CAS 15537-71-0)
- Piperacillin Impurity 75 (CAS CATO-C4X-173275)
- Piperacillin EP Impurity E (CAS 59702-31-7)
- Piperacillin Impurity 53 (CAS 65322-79-4)
- Piperacillin Impurity 80 (CAS CATO-C4X-173280)
- Piperacillin Sodium EP Impurity G (CAS 63422-71-9)
- Piperacillin EP Impurity A Hydrochloride (CAS 40688-84-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com