Doripenem Impurity 11 CAS CATO-C4X-162111
| CAS No. | CATO-C4X-162111 |
| Molecular Formula | C18H29N5O6S2 |
| Molecular Weight | 475.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Doripenem Impurity 11 (CAS CATO-C4X-162111, C18H29N5O6S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Doripenem Impurity 11 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 475.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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), Doripenem Impurity 11 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 | C18H29N5O6S2 |
| Molecular Weight | 475.58 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Doripenem Standards
- Doripenem Impurity 12 (CAS CATO-C4X-162112)
- Doripenem Impurity 1 (CAS CATO-C4X-16211)
- Doripenem (CAS 148016-81-3)
- Doripenem 4R Isomer Impurity (CAS 571176-82-4)
- Doripenem Impurity 2 (CAS 396717-61-6)
- Doripenem Impurity 3 (CAS 154634-04-5)
- Doripenem Impurity 4 (CAS CATO-C4X-16214)
- Doripenem Impurity 5 (CAS 189188-38-3)
Recommended Standards
- Vildagliptin Impurity 92 (CAS CATO-C4X-110092)
- 2-((4-(2-Methoxyphenyl)-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)-1-(3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (CAS 870756-81-3)
- Pitavastatin Impurity 72 (CAS CATO-C4X-103772)
- 2-((4-Ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (CAS 575458-89-8)
- Racecadotril EP Impurity D (CAS 123658-06-0)
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- [1,2,4]triazolo[4,3-a]quinoline-1-carboxylic acid (CAS 161015-09-4)
- Alverine Citrate-Impurity E (CAS 408309-07-9)
- N-(3,4-Difluorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 618427-59-1)
- 4-Chloro-2-(methylthio)pyrimidine-5-carboxamide (CAS 880613-19-4)
- N-Methyl-4-(oxazol-2-yl)aniline (CAS 1368659-13-5)
- tert-Butyl ((4-chloropyridin-2-yl)methyl)carbamate (CAS 96628-86-3)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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