Perindopril EP Impurity L CAS 111836-22-7
| CAS No. | 111836-22-7 |
| Molecular Formula | C11H17NO3 |
| Molecular Weight | 211.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Perindopril EP Impurity L 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.
As a process- or degradation-related impurity, Perindopril EP Impurity L (CAS 111836-22-7, C11H17NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Perindopril EP Impurity L (C11H17NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 211.26 g/mol, it falls into the medium-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.
Physical & Chemical Properties
| Molecular Formula | C11H17NO3 |
| Molecular Weight | 211.26 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Perindopril Standards
- Perindopril Impurity 85 (CAS CATO-C4X-125285)
- Perindopril Impurity 86 (CAS CATO-C4X-125286)
- Perindopril Impurity 90 (CAS CATO-C4X-125290)
- Perindopril Impurity 92 (CAS CATO-C4X-125292)
- Perindopril Impurity 29 (CAS 82834-11-5)
- Perindopril Impurity 30 (CAS 145682-38-8)
- Perindopril EP Impurity K (CAS 2165676-00-4)
- Perindopril Impurity 103 (CAS CATO-C4X-1252103)
Recommended Standards
- Oxcarbazepine Impurity 27 (CAS 4014-77-1)
- Ondansetron EP Impurity D (CAS 99614-64-9)
- Sildenafil Impurity 41 (CAS 304435-83-4)
- Norepinephrine Impurity 81 (CAS 779288-87-8)
- Difenoconazole Impurity 1 (CAS 1259033-72-1)
- Sumatriptan EP Impurity F (CAS 2074615-63-5)
- Mizolastine Impurity 2 (CAS 935860-13-2)
- N-((2-Cyclobutylthiazol-4-yl)methyl)pyrimidin-2-amine (CAS 1427023-58-2)
- N-(2,2,2-Trichloro-1-(piperidin-1-yl)ethyl)furan-2-carboxamide (CAS 303105-16-0)
- Ethyl 5-(p-tolyl)oxazole-4-carboxylate (CAS 885274-06-6)
- 5-[(1e)-2-phenylethenyl]-4h-1,2,4-triazole-3-thiol (CAS 218438-53-0)
- 4-(Furan-2-carbonyl)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 189090-94-6)
- 2-Methyl-1-((1-phenyl-1h-tetrazol-5-yl)thio)propan-2-ol (CAS 1183157-44-9)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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