Salmeterol EP Impurity C CAS 94749-11-8
| CAS No. | 94749-11-8 |
| Molecular Formula | C24H35NO4 |
| Molecular Weight | 401.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Salmeterol EP Impurity C (CAS 94749-11-8), a pharmacopoeial impurity reference standard (molecular formula C24H35NO4, MW 401.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Salmeterol EP Impurity C (C24H35NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 manufactures Salmeterol EP Impurity C 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 | C24H35NO4 |
| Molecular Weight | 401.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Related Salmeterol Standards
- Salmeterol EP Impurity F (CAS 1391054-40-2)
- Salmeterol EP Impurity E (CAS 108928-81-0)
- SalMeterol (CAS 89365-50-4)
- Salmeterol EP Impurity B (CAS 94749-02-7)
- Salmeterol-d3 (CAS 497063-94-2)
- Salmeterol Impurity 28 (CAS CATO-C4X-105028)
- Salmeterol Impurity 2 (CAS 160889-18-9)
- Salmeterol Impurity 9 (CAS 27475-14-5)
Recommended Standards
- rac-Mirabegron-d5 (CAS 1215807-38-7)
- Racecadotril Impurity 16 (CAS 2173396-73-9)
- Mirabegron D5 (CAS CATO-C4X-1032132)
- Mifepristone Impurity 2 (CAS 104004-92-4)
- Betahistine Impurity 5 (CAS 6293-56-7)
- Olanzapine Impurity 36 (CAS CATO-C4X-117836)
- Metronidazole EP Impurity C (CAS 5006-69-9)
- (E)-2-(((3-fluoro-4-methylphenyl)imino)methyl)phenol (CAS 303769-10-0)
- 4-(Difluoromethyl)-5-fluoro-3-iodopyridin-2-amine (CAS 1805113-42-1)
- 2-(4-Bromo-2-oxopyridin-1(2H)-yl)acetic acid (CAS 2092511-19-6)
- 1-Phenyl-3-(piperidin-3-ylamino)propan-1-one hydrochloride (CAS 1185317-59-2)
- (2-oxo-1,3-oxazolidin-4-yl)methyl 4-methylbenzene-1-sulfonate (CAS 97899-36-0)
- N-[(6-Chloropyridin-3-yl)methoxy]-2-methoxybenzamide (CAS 866020-44-2)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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