Esmolol Impurity 89 CAS CATO-C4X-189189
| CAS No. | CATO-C4X-189189 |
| Molecular Formula | C31H46N2O7 |
| Molecular Weight | 558.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Esmolol Impurity 89 (CAS CATO-C4X-189189), a pharmacopoeial impurity reference standard (molecular formula C31H46N2O7, MW 558.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Esmolol Impurity 89 (C31H46N2O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C31H46N2O7 |
| Molecular Weight | 558.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Esmolol Standards
- Esmolol Impurity 2 (CAS 98903-89-0)
- Esmolol Impurity 22 (CAS CATO-C4X-189122)
- Esmolol Impurity 24 (CAS CATO-C4X-189124)
- Esmolol Impurity 73 (CAS CATO-C4X-189173)
- Esmolol Impurity 23 (CAS CATO-C4X-189123)
- Esmolol Impurity 11 (CAS 98903-90-3)
- Esmolol Impurity 91 (CAS CATO-C4X-189191)
- Esmolol Impurity 85 (CAS CATO-C4X-189185)
Recommended Standards
- Xantphos based ligand (CAS 349100-75-0)
- Ivabradine Impurity 97 (CAS CATO-C4X-111997)
- (S,R,S)-AHPC-C5-COOH (CAS 2267282-19-7)
- TMC-353121, >98% (HPLC) (CAS 857066-90-1)
- Dotinurad Impurity 261 (CAS 2471978-72-8)
- Desonide Impurity 17 (CAS CATO-C4X-130117)
- N-Nitroso Piperacillin impurity 101 (CAS CATO-C4X-1732101)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
- Losartan Impurity 59 (CAS 57246-71-6)
- 1-(2-Bromophenyl)-3-phenyl-1H-pyrazol-5-amine (CAS 890764-12-2)
- Mordant Yellow 10 (CAS 6054-99-5)
- 4-[(E)-2-(Phenylmethylidene)hydrazin-1-yl]quinazoline (CAS 1429220-46-1)
- 3'H-spiro[azetidine-3,1'-isobenzofuran] (CAS 1047721-73-2)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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