Imipenem Impurity 9 CAS CATO-C4X-16629
| CAS No. | CATO-C4X-16629 |
| Molecular Formula | C16H18N4O3 |
| Molecular Weight | 314.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Imipenem Impurity 9 (CAS CATO-C4X-16629, C16H18N4O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Imipenem Impurity 9 (C16H18N4O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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.
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 | C16H18N4O3 |
| Molecular Weight | 314.34 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Imipenem Standards
- Imipenem Impurity 116 (CAS CATO-C4X-1662116)
- Imipenem Impurity 110 (CAS CATO-C4X-1662110)
- Imipenem Impurity 121 (CAS CATO-C4X-1662121)
- Imipenem Impurity 126 (CAS CATO-C4X-1662126)
- Imipenem EP Impurity B (CAS 1197869-90-1)
- Imipenem Impurity 4 (CAS CATO-C4X-16624)
- Imipenem Impurity 99 (CAS CATO-C4X-166299)
- Imipenem Impurity 130 (CAS CATO-C4X-1662130)
Recommended Standards
- Bilirubin impurity 5 (CAS CATO-C4X-15615)
- Methylene blue /Methylthioninium Chloride Impurity 21 (CAS CATO-C4X-189621)
- Nalmefene Impurity 19 (CAS CATO-C4X-126819)
- Gadoteridol Impurity 1 (CAS 229312-33-8)
- Ezetimibe Impurity 132 (CAS CATO-C4X-1098132)
- Di-Gly9-Oxytocin Open Ring Impurity (CAS CATO-C4X-206621)
- Bumetanide Impurity 127 (CAS CATO-C4X-1986127)
- Amino acid Impurity 4 (Z/E mixture) (CAS CATO-C1789414)
- 3-Phenylchrysene (CAS 1956377-07-3)
- 1-(1,1-Dioxo-tetrahydro-1lambda*6*-thiophen-3-yl)-piperazine (CAS 110469-63-1)
- 5-Amino-1-(2-chlorobenzyl)-N-(3-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899973-94-5)
- 1-(Pyridin-2-yl)piperidin-4-amine dihydrochloride (CAS 380222-98-0)
- Fmoc-Lys-OAll.HCl (CAS 815619-80-8)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
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