Brexpiprazole Impurity 171 CAS CATO-C4X-1131171
| CAS No. | CATO-C4X-1131171 |
| Molecular Formula | C25H25N3O3S |
| Molecular Weight | 447.55 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.
CATO supplies Brexpiprazole Impurity 171 (CAS CATO-C4X-1131171), a pharmacopoeial impurity reference standard (molecular formula C25H25N3O3S, MW 447.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C25H25N3O3S, Brexpiprazole Impurity 171 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 447.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Brexpiprazole Impurity 171 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 | C25H25N3O3S |
| Molecular Weight | 447.55 g/mol |
| Purity | 97%+ |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Brexpiprazole Standards
- Brexpiprazole Impurity 170 (CAS CATO-C4X-1131170)
- Brexpiprazole Impurity 172 (CAS CATO-C4X-1131172)
- Brexpiprazole Impurity 169 (CAS 2091105-80-3)
- Brexpiprazole Impurity 142 (CAS CATO-C4X-1131142)
- Brexpiprazole Impurity 10 (CAS 1191900-58-9)
- Brexpiprazole Impurity 149 (CAS 2368233-78-5)
- Brexpiprazole Impurity 153 (CAS CATO-C4X-1131153)
- Brexpiprazole Impurity 28 (CAS 1191900-51-2)
Recommended Standards
- Vardenafil Impurity 64 (CAS 224786-03-2)
- Lafutidine Impurity 2 (CAS 174583-84-7)
- N-(2,5-dimethylphenyl)-2-(5-(4-ethoxyphenyl)-6-methyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetamide (CAS 686336-53-8)
- For-Met-Leu-AMC (CAS 1429788-64-6)
- Metformin EP Impurity B Dinitrate (CAS 27369-26-2)
- Z-Cilnidipine Impurity 5 (CAS 146924-45-0)
- Perampanel impurity 40 (CAS CATO-C4X-243040)
- Rel-(2R,3R,7R)-3,7-dimethylpentadecan-2-ol (CAS 102680-34-2)
- 5-Chloro-4-methyl-2-nitropyridine (CAS 1374575-56-0)
- Sodium 4-Hydroxybenzoate (CAS 114-63-6)
- (R)-tert-Butyl 3-(pyrimidin-4-yloxy)pyrrolidine-1-carboxylate (CAS 1956434-54-0)
- 3-(4-Formylpyridin-1-ium-1-yl)propane-1-sulfonate (CAS 93803-29-3)
- 5-(chlorosulfonyl)-2-fluoro-4-methylbenzoic acid (CAS 1519211-09-6)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com