Lefamulinum Impurity 47 CAS CATO-C4X-304747
| CAS No. | CATO-C4X-304747 |
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Lefamulinum Impurity 47 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.
CATO supplies Lefamulinum Impurity 47 (CAS CATO-C4X-304747), a pharmacopoeial impurity reference standard (molecular formula C22H34O4, MW 362.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C22H34O4, Lefamulinum Impurity 47 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 362.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Lefamulinum Standards
- Lefamulinum Impurity 48 (CAS CATO-C4X-304748)
- Lefamulinum Impurity 12 (CAS CATO-C4X-304712)
- Lefamulinum Impurity 13 (CAS CATO-C4X-304713)
- Lefamulinum Impurity 35 (CAS CATO-C4X-304735)
- Lefamulinum Impurity 46 (CAS CATO-C4X-304746)
- Lefamulinum Impurity 34 (CAS CATO-C4X-304734)
- Lefamulinum Impurity 37 (CAS CATO-C4X-304737)
- Lefamulinum Impurity 39 (CAS CATO-C4X-304739)
Recommended Standards
- Tiamulin EP Impurity J (CAS 31771-36-5)
- Tiamulin EP Impurity K (CAS 31716-11-7)
- Phthalic acid, bis-5-methylhexyl ester (CAS 90937-19-2)
- Levonorgestrel Impurity 43 (CAS 2762739-33-1)
- Oxcarbazepine Impurity 8 (CAS 59690-99-2)
- Cytarabine Impurity 14 (CAS 3768-18-1)
- N-Nitroso Cyproheptadine impurity 17 (CAS 3979-11-1)
- 1-(4-Aza-8-hydroxy-6-oxo)oct-2-en-1-oylimidazole-d3(mixture E/Z) (CAS 1795138-51-0)
- 3-Chloromethyl-1-methylpiperidine hydrochloride (CAS 66496-82-0)
- 4,4'-Methylenebis(3-methylaniline) (CAS 97-28-9)
- 6,6-Dimethyl-2-methylenebicyclo[3.1.1]heptan-3-one (CAS 30460-92-5)
- 6-Chloro-4-methylquinolin-3-amine (CAS 858195-92-3)
- 2-Methyl-3-(2-(2-oxoimidazolidin-1-yl)ethyl)quinazolin-4(3H)-one (CAS 61741-73-9)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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