Formoterol Impurity 46 CAS 22331-70-0
| CAS No. | 22331-70-0 |
| Molecular Formula | C11H17NO |
| Molecular Weight | 179.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Formoterol Impurity 46 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.
Formoterol Impurity 46 (CAS 22331-70-0) is a certified pharmaceutical impurity reference standard with the molecular formula C11H17NO and a molecular weight of 179.26 g/mol.
Formoterol Impurity 46 (C11H17NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C11H17NO |
| Molecular Weight | 179.26 g/mol |
| 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.) | 1963 |
| Nitrogen Atoms | 1 |
Related Formoterol Standards
- 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 44 (CAS 58993-79-6)
- Formoterol Impurity 49 (CAS 14367-46-5)
- Formoterol EP Impurity G (CAS 23239-32-9)
Recommended Standards
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- Venlafaxine EP Impurity A (CAS 775-33-7)
- Crisaborole Impurity 6 (CAS 888967-63-3)
- Amlodipine Impurity 152 (CAS CATO-C4X-1095152)
- Bilastine impurity 98 (CAS CATO-C4X-225398)
- 3-(4-aminophenyl)-1-phenylpropan-1-ol (CAS 196812-87-0)
- 2-(3,4,5-Trifluorophenoxy)acetonitrile (CAS 1378379-03-3)
- Ethyl 7-(4-isopropylphenyl)-7-oxoheptanoate (CAS 122115-50-8)
- Tetradecahydro-4,7-phenanthroline (CAS 1071945-88-4)
- 4-(1h-Indol-3-yl)-N-(pyridin-4-yl)butanamide (CAS 221188-54-1)
- 1,1'-(Butane-1,4-diyl)bis(1H-pyrrole-2,5-dione) (CAS 28537-70-4)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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