Lefamulinum Impurity CAS CATO-C4X-304728
| CAS No. | CATO-C4X-304728 |
| Molecular Formula | C28H45NO6S |
| Molecular Weight | 523.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Lefamulinum Impurity (C28H45NO6S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 523.73 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Lefamulinum Impurity (CAS CATO-C4X-304728) is a certified pharmaceutical impurity reference standard with the molecular formula C28H45NO6S and a molecular weight of 523.73 g/mol.
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 Lefamulinum Impurity 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 | C28H45NO6S |
| Molecular Weight | 523.73 g/mol |
| Purity | 95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Lefamulinum Standards
- Lefamulinum Impurity 17 (CAS CATO-C4X-304717)
- Lefamulinum Impurity 18 (CAS CATO-C4X-304718)
- Lefamulinum Impurity 29 (CAS CATO-C4X-304729)
- Lefamulinum Impurity 3 (CAS CATO-C4X-30473)
- Lefamulinum Impurity 4 (CAS CATO-C4X-30474)
- Lefamulinum Impurity 15 (CAS CATO-C4X-304715)
- Lefamulinum Impurity 20 (CAS CATO-C4X-304720)
- Lefamulinum Impurity 30 (CAS CATO-C4X-304730)
Recommended Standards
- 4-(2-(Di-tert-butylphosphino)phenyl)-4,5,8,9,10,11,12,13,14,15-decahydro-3H-dinaphtho[2,1-c:1',2'-e]azepine (CAS 2769700-25-4)
- 2-((3-Cyano-4-phenyl-6-(p-tolyl)pyridin-2-yl)thio)-N,N-dicyclohexylacetamide (CAS 332171-11-6)
- 1-O-Octadecyl-2-O-methyl-rac-glycero-3-phosphocholine (CAS 70641-51-9)
- (S)-Edelfonise (CAS 83542-43-2)
- pramipexole Impurity 33 (CAS CATO-C4X-110733)
- Entacapone Impurity 57 (CAS CATO-C4X-162957)
- Cefmetazole Impurity 68 (CAS CATO-C4X-150768)
- 2-([1,1'-Biphenyl]-4-yloxy)-1-(3-(isobutylsulfonyl)azetidin-1-yl)ethan-1-one (CAS 1797304-46-1)
- ((2R,3S,4R,5S)-3,4,5-Trihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate (CAS 34980-65-9)
- 4-Hydroxy-N'-(2-hydroxybenzylidene)benzohydrazide (CAS 82859-76-5)
- 5-iodo-2,4-dimethoxybenzaldehyde (CAS 121177-67-1)
- 2-[(Adamantan-1-yl)methoxy]-3-chloro-5-(trifluoromethyl)pyridine (CAS 339098-66-7)
- 5-Bromo-2-(tert-butoxy)-4-cyclopropoxypyridine (CAS 1243446-24-3)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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