Piperacillin Sodium EP Impurity G CAS 63422-71-9
| CAS No. | 63422-71-9 |
| Molecular Formula | C15H17N3O5 |
| Molecular Weight | 319.31 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 Sodium EP Impurity G.
CATO supplies Piperacillin Sodium EP Impurity G (CAS 63422-71-9), a pharmacopoeial impurity reference standard (molecular formula C15H17N3O5, MW 319.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Piperacillin Sodium EP Impurity G (C15H17N3O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 319.31 g/mol, it falls into the moderately-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).
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.
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 | C15H17N3O5 |
| Molecular Weight | 319.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |
Related Piperacillin Standards
- Piperacillin Impurity 80 (CAS CATO-C4X-173280)
- Piperacillin EP Impurity J (CAS 2170771-47-6)
- S-Piperacillin Impurity J (CAS CATO-C4X-173273)
- Piperacillin Impurity 53 (CAS 65322-79-4)
- Piperacillin Impurity 26 (CAS 15537-71-0)
- DL-Piperacillin EP Impurity I (CAS 158411-82-6)
- Piperacillin EP Impurity I (CAS 13833-89-1)
- Piperacillin (CAS CATO-C4X-173245)
Recommended Standards
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- Opicapone impurity 30 (CAS CATO-C4X-240430)
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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