Salmeterol Impurity 23 CAS CATO-C4X-105023
| CAS No. | CATO-C4X-105023 |
| Molecular Formula | C22H31NO |
| Molecular Weight | N/A |
| 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.
CATO supplies Salmeterol Impurity 23 (CAS CATO-C4X-105023), a pharmacopoeial impurity reference standard (molecular formula C22H31NOHBr, MW 406.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C22H31NOHBr, Salmeterol Impurity 23 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Salmeterol Impurity 23 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 | C22H31NO HBr |
| Molecular Weight | 406.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Salmeterol Standards
- Salmeterol Impurity 18 (CAS 101386-64-5)
- Salmeterol EP Impurity E (CAS 108928-81-0)
- Salmeterol Impurity 12 (CAS 108928-82-1)
- Salmeterol Impurity 4 (CAS 123206-83-7)
- Salmeterol Impurity 11 (CAS 1330076-52-2)
- Salmeterol Fluticasone Propionate Mixture (CAS 136112-01-1)
- Salmeterol Dimer Impurity (CAS 1391051-88-9)
- Salmeterol EP Impurity D (CAS 1391052-04-2)
Recommended Standards
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- (1R,3S)-3-Amino-1-(Boc-amino)cyclopentane (CAS 774212-81-6)
- 1-(4-Fluoro-3-nitrophenyl)cyclohexane-1-carbonitrile (CAS 1881290-81-8)
- 3,3-Dimethyl-1-(methylamino)cyclobutane-1-carboxylic acid (CAS 1936237-49-8)
- Ethyl 5-amino-4-chloro-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate (CAS 1427021-63-3)
- 4-(4-(Cyclopropylmethoxy)phenyl)butan-2-amine (CAS 1154384-21-0)
- Hydroxychloroquine EP Impurity F HCl (CAS CATO-C4X-183527)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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