Lefamulinum Impurity 3 CAS CATO-C4X-30473
| CAS No. | CATO-C4X-30473 |
| Molecular Formula | C28H45NO6S |
| Molecular Weight | 523.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Lefamulinum Impurity 3 is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Lefamulinum Impurity 3 (CAS CATO-C4X-30473), a pharmacopoeial impurity reference standard (molecular formula C28H45NO6S, MW 523.73 g/mol) used for the identification and quantification of trace impurities in APIs.
Lefamulinum Impurity 3 (C28H45NO6S) contains a steroid core, an amide group, a sulfone 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 Lefamulinum Impurity 3 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 | 90% |
| 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 (CAS CATO-C4X-304728)
- Lefamulinum Impurity 29 (CAS CATO-C4X-304729)
- 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
- 1-O-Octadecyl-2-O-methyl-rac-glycero-3-phosphocholine (CAS 70641-51-9)
- 1-O-Octadecyl-2-O-methyl-sn-glycero-3-phosphocholine (CAS 77286-66-9)
- L28-1 (CAS CATO-C4X-35407)
- 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)
- Nifedipine Impurity 21 (CAS 80742-13-8)
- Etoricoxib Impurity 1 (CAS 325855-74-1)
- CAS 207283-64-5 (CAS 207283-64-5)
- 2-(3,4-Dichlorophenyl)-2,3-dihydroquinazolin-4(1h)-one (CAS 199741-36-1)
- Flunarizine Impurity 32 (CAS 141528-78-1)
- Ethacridine Lactate (CAS 1837-57-6)
- 5-Bromo-N,N-diethylfuran-2-carboxamide (CAS 57785-35-0)
- N1,N3-bis(2,4-difluorophenyl)malonamide (CAS 339096-50-3)
- (3s)-3-amino-3-(2-chlorophenyl)propanoic acid (S)-beta-(2-Chlorophenyl)alanine (s)-3-(2-chlorophenyl)-beta-alanine (s)-3-amino-3-(2-chloro-phenyl)-propanoic acid (s)-3-amino-3-(2-chloro-phenyl)-propionic acid (s)-3-amino-3-(2-chlorophenyl)propanoic acid (s)-3-amino-3-(2-chlorophenyl)propionic acid 763922-37-8 benzenepropanoic acid, beta-amino-2-chloro-, (betas)- h-beta-phe(2-cl)-oh h-d-phg(2-cl)-(c*ch2)oh s-3-amino-3-(2-chloro-phenyl)-propionic acid (CAS 763922-37-8)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
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