Formoterol Impurity 44 CAS 58993-79-6
| CAS No. | 58993-79-6 |
| Molecular Formula | C10H15NO |
| Molecular Weight | 165.23 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.
As a process- or degradation-related impurity, Formoterol Impurity 44 (CAS 58993-79-6, C10H15NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Formoterol Impurity 44 (C10H15NO) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures Formoterol Impurity 44 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 | C10H15NO |
| Molecular Weight | 165.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
Related Formoterol Standards
- Formoterol EP Impurity G (CAS 23239-32-9)
- Formoterol Impurity 46 (CAS 22331-70-0)
- Formoterol Impurity 48 (CAS 87179-33-7)
- Formoterol Impurity 47 (CAS 70284-07-0)
- Formoterol Impurity 31 (CAS 477552-94-6)
- Formoterol Impurity 19 (CAS 126002-14-0)
- Formoterol impurity 106 (CAS CATO-C4X-1525106)
- Formoterol Impurity 49 (CAS 14367-46-5)
Recommended Standards
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- Rivastigmine Impurity 10 (CAS 105601-04-5)
- Valbenazine Impurity 3 (CAS CATO-C4X-33423)
- Phenylbutyrate Impurity 6 (CAS 1292210-87-7)
- Trazodone Impurity 87 HBr (CAS CATO-C4X-177287)
- 2-Chloro-6-(1-methyl-piperidin-4-yl)-pyrazine (CAS 1316225-84-9)
- 1-(Bromomethyl)-1-((2,2,2-trifluoroethoxy)methyl)cyclopropane (CAS 1496897-69-8)
- 2-((Tetrahydro-2H-pyran-4-yl)amino)acetonitrile (CAS 1153228-82-0)
- 5-Bromo-6-(1H-pyrazol-1-yl)pyridin-3-amine (CAS 1522912-84-0)
- Chloroformic Acid Impurity 1 (CAS 628-50-2)
- 2-Chloro-3H-imidazo[4,5-c]pyridine (CAS 760912-66-1)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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