Perindopril Impurity 33 CAS 145513-90-2
| CAS No. | 145513-90-2 |
| Molecular Formula | C9H15NO2 |
| Molecular Weight | 169.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Perindopril Impurity 33 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 Impurity 33 (CAS 145513-90-2, C9H15NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Perindopril Impurity 33 (C9H15NO2) is characterized by an amino-acid-derived structure, 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.
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 | C9H15NO2 |
| Molecular Weight | 169.22 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Related Perindopril Standards
- Perindopril Impurity N1 (CAS 108507-42-2)
- Perindopril Impurity 110 (CAS 145438-94-4)
- Perindopril Impurity 111 (CAS 145513-93-5)
- Perindopril Impurity 38 (CAS 80828-13-3)
- Perindopril USP Related Compound A (CAS 80875-98-5)
- Perindopril Impurity 31 (CAS 537014-85-0)
- Perindopril Impurity 41 (CAS CATO-C4X-125241)
- Perindopril Impurity 39 (CAS 79815-20-6)
Recommended Standards
- propyl 2-cyanopentanoate (CAS CATO-C4X-116658)
- Pregabalin Impurity 132 (CAS CATO-C4X-1312132)
- 2-Cyano-2-propylpentanoic acid (CAS 66546-91-6)
- Pregabalin Impurity 133 (CAS CATO-C4X-1312133)
- Oxytocin Impurity 48 (CAS 186798-41-4)
- Cariprazine Impurity 53 (CAS CATO-C4X-240853)
- Argatroban Impurity 138 (CAS CATO-C4X-1007138)
- DL-6-Hydroxy Norleucine (CAS 305-77-1)
- 3-(3-Methoxyphenyl)morpholine (CAS 1017396-56-3)
- Sodium ((tosylazanediyl)bis(ethane-2,1-diyl))bis(tosylamide) (CAS 52601-80-6)
- [(4-Bromophenyl)methyl](butan-2-yl)amine (CAS 59513-66-5)
- 8-(2-Octylcyclopropyl)octanoic acid (CAS 5711-28-4)
- Benzyl 4-iodobutanoate (CAS 118058-69-8)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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