Labetalol Impurity 67 CAS CATO-C4X-246667
| CAS No. | CATO-C4X-246667 |
| Molecular Formula | C23H21NO4 |
| Molecular Weight | 375.42 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 375.42 g/mol gives Labetalol Impurity 67 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Labetalol Impurity 67 (CAS CATO-C4X-246667), a pharmacopoeial impurity reference standard (molecular formula C23H21NO4, MW 375.42 g/mol) used for the identification and quantification of trace impurities in APIs.
Labetalol Impurity 67 (C23H21NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Labetalol Impurity 67 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 | C23H21NO4 |
| Molecular Weight | 375.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Labetalol Standards
- Labetalol Impurity 56 (CAS 2731858-23-2)
- Labetalol Impurity 25 (CAS CATO-C4X-246625)
- Labetalol Impurity 49 (CAS CATO-C4X-246649)
- Labetalol Impurity 18 (CAS CATO-C4X-246618)
- Labetalol impurity 43 (CAS CATO-C4X-246643)
- Labetalol Impurity 52 (CAS CATO-C4X-246652)
- Labetalol Impurity 10 (CAS CATO-C4X-246610)
- Labetalol Impurity 53 (CAS 802620-01-5)
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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