Ertapenem Impurity 7 CAS CATO-C4X-16337
| CAS No. | CATO-C4X-16337 |
| Molecular Formula | 2*C44H50N6O14S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ertapenem Impurity 7 (CAS CATO-C4X-16337) is a certified pharmaceutical impurity reference standard with the molecular formula C44H50N6O14S2 and a molecular weight of 951.03 g/mol.
The molecular framework of Ertapenem Impurity 7 (C44H50N6O14S2) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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), Ertapenem Impurity 7 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 | 2*C44H50N6O14S2 |
| Molecular Weight | 951.03 g/mol |
| Purity | >95% |
| 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Ertapenem Standards
- Ertapenem Impurity 29 (CAS 1150883-75-2)
- Ertapenem Dimer Form D Impurity (CAS 1199797-41-5)
- Ertapenem Impurity 32 (CAS 1199797-42-6)
- Ertapenem Impurity 10 (CAS 1199797-43-7)
- Ertapenem Impurity 33 (CAS 1199797-43-7&402955-37-7 (mixture))
- Ertapenem Impurity C344 (CAS 135042-12-5)
- Ertapenem Impurity C28 (CAS 147266-92-0)
- Ertapenem sodium (CAS 153773-82-1)
Recommended Standards
- Indobufen Impurity 17 (CAS 104-03-0)
- Valsartan Impurity 74 (CAS CATO-C4X-105774)
- Hydroxychloroquine Impurity 41 (CAS CATO-C4X-183541)
- 2-(Morpholin-4-yl)-N-(2-nitrophenyl)ethane-1-sulfonamide (CAS 1797764-54-5)
- 4-Hydroxy-1-[2-(naphthalen-2-yl)acetyl]pyrrolidine-2-carboxylic acid (CAS 1104226-90-5)
- 3,5-Dichloro-6-fluoropyridin-2-amine (CAS 1261269-88-8)
- N-ethyl-N-((5-methyl-1,2,4-oxadiazol-3-yl)methyl)azepan-4-amine (CAS 1804129-66-5)
- 2-(3-Nitropyridin-4-yl)acetamide (CAS 2140305-39-9)
- 5-Butyl-5-ethyl-1,3-dioxan-2-one (CAS 40998-16-1)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
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