Captopril Impurity 42 CAS CATO-C4X-119042
| CAS No. | CATO-C4X-119042 |
| Molecular Formula | C21H35NO6 |
| Molecular Weight | 397.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 397.51 g/mol gives Captopril Impurity 42 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Captopril Impurity 42 (CAS CATO-C4X-119042, C21H35NO6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Captopril Impurity 42 (C21H35NO6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 397.51 g/mol, it falls into the moderately-high-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.
CATO manufactures Captopril Impurity 42 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H35NO6 |
| Molecular Weight | 397.51 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Captopril Standards
- Captopril Impurity 28 (CAS CATO-C4X-119028)
- Captopril Impurity 29 (CAS CATO-C4X-119029)
- Captopril impurity 1 (CAS CATO-C4X-11901)
- Captopril EP Impurity I (CAS CATO-C4X-119018)
- Captopril Impurity 34 (CAS CATO-C4X-119034)
- Captopril Impurity 27 (CAS CATO-C4X-119027)
- Captopril EP Impurity A (Captopril disulfide) (CAS 64806-05-9)
- Captopril EP Impurity H (CAS 205521-07-9)
Recommended Standards
- 3-Hydroxydonepezil (CAS CATO-C4X-103934)
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- Nemonoxacin Impurity 36 (CAS CATO-C4X-312836)
- Rivaroxaban Impurity 15 (CAS CATO-C4X-109015)
- Carfilzomib Impurity 38 (Mixture of Diastereomers) (CAS CATO-C4X-102238)
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- Besulpamide (CAS 90992-25-9)
- 2-Isobutoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1346707-87-6)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com