Ertapenem Impurity 66 CAS CATO-C4X-163366
| CAS No. | CATO-C4X-163366 |
| Molecular Formula | C26H28N4O3S |
| Molecular Weight | 476.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ertapenem Impurity 66 (CAS CATO-C4X-163366) is a certified pharmaceutical impurity reference standard with the molecular formula C26H28N4O3S and a molecular weight of 476.59 g/mol.
Structurally, Ertapenem Impurity 66 (C26H28N4O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 476.59 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 66 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 | C26H28N4O3S |
| Molecular Weight | 476.59 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ertapenem Standards
- Ertapenem (CAS 153832-46-3)
- Ertapenem Side Chain Enantiomer 2 Hydrochloride (CAS 503607-49-6)
- Ertapenem Impurity 12 (CAS CATO-C4X-163312)
- Ertapenem Impurity 29 (CAS 1150883-75-2)
- Ertapenem impurity 49 (CAS 357154-27-9)
- Ertapenem Impurity 50 (CAS CATO-C4X-163350)
- Ertapenem Impurity 18 (CAS CATO-C4X-163318)
- Ertapenem Impurity 55 (CAS CATO-C4X-163355)
Recommended Standards
- N-Methyl-N-(2-{4-[1-(2,4,6-trimethylbenzenesulfonyl)-1H-pyrazol-3-yl]phenoxy}ethyl)pyridin-2-amine (CAS 477713-86-3)
- (3aR,4R,5R,6aS)-2-oxo-4-(3-oxodecyl)hexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate (CAS 120373-45-7)
- N-(3-(1H-Benzo[d]imidazol-2-yl)phenyl)-4-(N,N-dipropylsulfamoyl)benzamide (CAS 477493-13-3)
- CBD-β-D-glucoside DISCONTINUED (CAS 182811-12-7)
- Epinastine Impurity 16 (CAS 1557-50-2)
- Loxoprofen Impurity 70 (CAS 1027957-36-3)
- Indobufen Impurity 10 (CAS 94232-67-4)
- 6-(bromomethyl)-1-methyl-pyrazolo[4,3-b]pyridine (CAS 2383022-76-0)
- 2’-Bromo-3’-chloroacetophenone (CAS 161957-60-4)
- N'-Isopropylbenzohydrazide (CAS 3408-21-7)
- tert-Butyl 2-oxo-5,6,8,9-tetrahydro-1H-pyrido[2,3-d]azepine-7-carboxylate (CAS 1003589-96-5)
- N-(4-chlorobenzyl)-2-(4-methoxyphenyl)ethan-1-amine hydrobromide (CAS 1609406-85-0)
- Ethyl 3-{[(2,5-dimethoxyphenyl)carbamoyl]amino}propanoate (CAS 1022286-64-1)
- Lixisenatide (CAS 320367-13-3)
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