Relebactam Impurity 4 CAS CATO-C4X-21444
| CAS No. | CATO-C4X-21444 |
| Molecular Formula | C18H37N5O2 |
| Molecular Weight | 355.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Relebactam Impurity 4 (CAS CATO-C4X-21444) is a certified pharmaceutical impurity reference standard with the molecular formula C18H37N5O2 and a molecular weight of 355.52 g/mol.
Relebactam Impurity 4 (C18H37N5O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), Relebactam Impurity 4 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 | C18H37N5O2 |
| Molecular Weight | 355.52 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 5 |
Related Relebactam Standards
- Relebactam Impurity 138 (CAS CATO-C4X-2144138)
- Relebactam-d4 (CAS CATO-C4X-214449)
- Relebactam Impurity 153 (CAS CATO-C4X-2144153)
- Relebactam Impurity 154 (CAS CATO-C4X-2144154)
- Relebactam Impurity 155 (CAS CATO-C4X-2144155)
- Relebactam Impurity 113 (CAS 1972591-12-0)
- Relebactam Impurity 110 (CAS 2650050-13-6)
- Relebactam Impurity 111 (CAS 1174019-20-5)
Recommended Standards
- N-(2-butyl-3-propylquinolin-4-yl)-2-(tert-butylamino)acetamide (CAS 298203-52-8)
- 5-((4-(Tert-butyl)benzyl)thio)-N-phenyl-1,3,4-thiadiazol-2-amine (CAS 797001-63-9)
- 5-Ethyl-N-((1-(thiophen-2-yl)cyclopentyl)methyl)thiophene-2-sulfonamide (CAS 1058184-83-0)
- 2-(Benzylthio)-N-cyclohexylthieno[3,2-d]pyrimidin-4-amine (CAS 339018-95-0)
- N-Nitroso Azelastine EP Impurity A (CAS CATO-C4X-139640)
- Mianserin Impurity 81 (CAS 73771-03-6)
- Nicergoline Impurity 15 (CAS CATO-C4X-208515)
- ((Chloromethyl)sulfonyl)benzene (CAS 7205-98-3)
- Methyl3,3-dimethyl-2-oxo-2,3-dihydro-1h-indole-6-carboxylate (CAS 1638765-21-5)
- 5-Chloro-4-phenylpyridin-2-amine (CAS 1232431-91-2)
- Ethyl 3-ethyl-5-methylbenzoate (CAS 1349717-62-9)
- Primidolol Hydrochloride (CAS 40778-40-3)
- 3,4-Dichlorobenzene-1-sulfonyl fluoride (CAS 60191-50-6)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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