Salbutamol EP Impurity I CAS 56796-66-8
| CAS No. | 56796-66-8 |
| Molecular Formula | C20H27NO3 |
| Molecular Weight | 329.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H27NO3, Salbutamol EP Impurity I contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 329.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Salbutamol EP Impurity I (CAS 56796-66-8), a pharmacopoeial impurity reference standard (molecular formula C20H27NO3, MW 329.43 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Salbutamol EP Impurity I meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H27NO3 |
| Molecular Weight | 329.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
Related Salbutamol Standards
- Salbutamol EP Impurity E (CAS 24085-03-8)
- Salbutamol Impurity 112 (CAS CATO-C4X-1176112)
- Salbutamol Impurity 178 (CAS CATO-C4X-1176178)
- Salbutamol EP Impurity I(R-Isomer) (CAS 174607-68-2)
- Salbutamol Impurity 115 (CAS CATO-C4X-1176115)
- Salbutamol Impurity 116 (CAS CATO-C4X-1176116)
- Salbutamol Impurity 123 (CAS CATO-C4X-1176123)
- Salbutamol EP Impurity G (CAS 64092-10-0)
Recommended Standards
- Dobutamine Impurity 12 (CAS 334947-72-7)
- Dobutamine Impurity 57 (CAS CATO-C4X-129857)
- N-Nitroso Duloxetine-d3 (CAS CATO-C4X-133653)
- Prednisone Impurity 10 (CAS 103335-31-5)
- Dronedarone Impurity 64 (CAS CATO-C4X-109264)
- Daptomycin Impurity 26 (CAS CATO-C4X-137826)
- Roxadustat Impurity N3 (CAS 1421312-34-6)
- 1-Chloro-2-iodo-4-(trifluoromethoxy)benzene (CAS 845866-91-3)
- 1-Benzylpiperidine-4-carboxamide (CAS 62992-68-1)
- Ethyl 5-Hydroxy-1H-pyrazole-3-carboxylate (CAS 85230-37-1)
- 3-((Pyridin-3-ylmethyl)amino)propanenitrile (CAS 33611-48-2)
- 2-Fluoro-6-methoxyisonicotinic Acid (CAS 1060806-66-7)
- tert-Butyl 4-(2-methylphenyl)piperazine-1-carboxylate (CAS 1121596-60-8)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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