Ertapenem Impurity Pro-maba CAS 724700-26-9
| CAS No. | 724700-26-9 |
| Molecular Formula | C12H14N2O3 |
| Molecular Weight | 234.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 234.25 g/mol gives Ertapenem Impurity Pro-maba distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ertapenem Impurity Pro-maba (CAS 724700-26-9) is a certified pharmaceutical impurity reference standard with the molecular formula C12H14N2O3 and a molecular weight of 234.25 g/mol.
Structurally, Ertapenem Impurity Pro-maba (C12H14N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 234.25 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C12H14N2O3 |
| Molecular Weight | 234.25 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Ertapenem Standards
- Ertapenem Impurity C344 (CAS 135042-12-5)
- Ertapenem Impurity C28 (CAS 147266-92-0)
- Ertapenem Impurity C90 (CAS 87691-27-8)
- Ertapenem Impurity 16 (CAS 266337-30-8)
- Ertapenem Impurity (CAS 770703-11-2)
- Ertapenem Impurity 61 (CAS CATO-C4X-163361)
- Ertapenem Impurity 17 (CAS CATO-C4X-163317)
- Ertapenem M1 (CAS 357154-28-0)
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- 2-Methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazole-2-carboxylic acid (CAS 1554887-70-5)
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- 8-Fluoro-1,2,3,4-tetrahydroisoquinoline hydrochloride (CAS 1185030-61-8)
- n-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)thiophene-2-carboxamide (CAS 708210-05-3)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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