Bisoprololi EP Impurity U CAS 1071765-44-0
| CAS No. | 1071765-44-0 |
| Molecular Formula | C14H19NO4 |
| Molecular Weight | 265.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H19NO4, Bisoprololi EP Impurity U contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 265.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Bisoprololi EP Impurity U (CAS 1071765-44-0), a pharmacopoeial impurity reference standard (molecular formula C14H19NO4, MW 265.30 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H19NO4 |
| Molecular Weight | 265.30 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Brexpiprazole Impurity 164 (CAS CATO-C4X-1131164)
- Tirofiban Impurity 36 (CAS 92501-98-9)
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- Indobufen Impurity 50 (CAS CATO-C4X-179250)
- Probucol Impurity 15 (CAS 123500-67-4)
- Suzetrigine Impurity 42 (CAS CATO-C4X-336942)
- Aclidinium bromide Impurity 2 (CAS 7333-07-5)
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- (3AR,5R)-5-((benzyloxy)methyl)-3a,4,5,7-tetrahydro-3H-pyrano[3,4-c]isoxazole (CAS 1220328-97-1)
- Methyl 3-(2-((2-(2-(isopropylamino)acetamido)phenyl)thio)acetamido)thiophene-2-carboxylate (CAS 478045-25-9)
- 1-(Methylamino)cyclopentane-1-carbonitrile (CAS 55793-49-2)
- Ethyl 5-fluoro-3-(p-tolyl)-1H-indole-2-carboxylate (CAS 1363405-15-5)
- 4-(2-Furfuryl)-3-thiosemicarbazide (CAS 96860-19-4)
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com