Indacaterol Impurity 93 CAS 1640894-03-6
| CAS No. | 1640894-03-6 |
| Molecular Formula | C18H16BrNO3 |
| Molecular Weight | 374.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Indacaterol Impurity 93 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Indacaterol Impurity 93 (CAS 1640894-03-6) is a certified pharmaceutical impurity reference standard with the molecular formula C18H16BrNO3 and a molecular weight of 374.23 g/mol.
Indacaterol Impurity 93 (C18H16BrNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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.
CATO manufactures Indacaterol Impurity 93 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 | C18H16BrNO3 |
| Molecular Weight | 374.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Indacaterol Standards
- Indacaterol Impurity 3 (CAS 530084-79-8)
- Indacaterol impurity 75 (CAS CATO-C4X-150075)
- Indacaterol Impurity 37 (CAS CATO-C4X-150037)
- Indacaterol Impurity 2 (CAS 100331-89-3)
- Indacaterol Impurity 12 (CAS 1026461-20-0)
- Indacaterol Impurity 36 (CAS CATO-C4X-150036)
- S-Indacaterol (CAS 1235445-80-3)
- Indacaterol Impurity 39 (CAS CATO-C4X-150039)
Recommended Standards
- Crisaborole Impurity 103 (CAS CATO-C4X-2021103)
- 2-(2,6-Dichlorobenzenesulfonamido)-3-phenylpropanoic acid (CAS 1008423-33-3)
- N-(3-Bromophenyl)-6,7-dimethoxy-N-methylquinazolin-4-amine (CAS 229476-53-3)
- (10-([1,1'-Biphenyl]-3-yl)anthracen-9-yl)boronic acid (CAS 1155911-88-8)
- Enzalutamide Impurity 13 (CAS CATO-C4X-101613)
- Eltrombopag Impurity 118 (CAS CATO-C4X-1198118)
- Dacomitinib Impurity 24 (CAS CATO-C4X-208624)
- 5-(4-Bromophenyl)-1-(4-fluorophenyl)-1h-imidazole-2-thiol (CAS 1105189-86-3)
- 2-Hydroxy-N'-(1-(2-hydroxyphenyl)ethylidene)benzohydrazide (CAS 15533-09-2)
- 2-(6-Hydroxy-naphthalen-2-yl)-propionic acid methyl ester (CAS 61495-42-9)
- Potassium trimethoxy(trifluoromethyl)borate (CAS 626232-27-7)
- 1-(2-methylcyclopropyl)ethan-1-amine (CAS 42302-92-1)
- N-(azetidin-3-yl)methanesulfonamide (CAS 1056056-12-2)
- Glucagon Monohydrochloride (CAS 28270-04-4)
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