Salmeterol Impurity 27 CAS CATO-C4X-105027
| CAS No. | CATO-C4X-105027 |
| Molecular Formula | C15H23BrO |
| Molecular Weight | 299.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Salmeterol Impurity 27 (CAS CATO-C4X-105027), a pharmacopoeial impurity reference standard (molecular formula C15H23BrO, MW 299.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Salmeterol Impurity 27 (C15H23BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, 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).
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 | C15H23BrO |
| Molecular Weight | 299.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Salmeterol Standards
- Salmeterol Impurity (CAS 63295-94-3)
- Salmeterol Impurity 18 (CAS 101386-64-5)
- Salmeterol EP Impurity A (CAS 1798014-51-3)
- Salmeterol Impurity (CAS 14389-87-8)
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- Salmeterol Impurity 17 (CAS 94749-00-5)
- Salmeterol Impurity 29 (CAS CATO-C4X-105029)
- Salmeterol Impurity N1 (CAS 97664-55-6)
Recommended Standards
- N2-Methyl-N4-phenyl-6-(2,2,2-trifluoroethoxy)-1,3,5-triazine-2,4-diamine (CAS 296769-69-2)
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- N-(4-methoxyphenyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 477709-58-3)
- 2,2-Dimethyl-5-(((5-nitrothiazol-2-yl)amino)methylene)-1,3-dioxane-4,6-dione (CAS 1024427-41-5)
- Terbutaline impurity 117 (CAS CATO-C4X-1183117)
- Tenofovir Alafenamide Impurity 7 (CAS 1948248-12-1)
- Imrecoxib Impurity 14 (CAS 959003-56-6)
- N-(2-{[2,5-bis(2,2,2-trifluoroethoxy)phenyl]formamido}ethyl)-2,2-dimethylpropanamide (CAS 338404-46-9)
- Methyl 3-acetamido-5-(chlorosulfonyl)benzoate (CAS 1393542-98-7)
- Ethyl(2-methoxy-2-methylpropyl)amine (CAS 1094071-95-0)
- (6-(Trifluoromethyl)pyridin-2-yl)methanamine hydrochloride (CAS 1185022-87-0)
- N-(1,1-Diphenyl-2-(pyridin-4-yl)ethyl)aniline (CAS 15814-98-9)
- 4-Guanidino-N-(oxazol-2-yl)benzamide (CAS 733045-69-7)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
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