Lefamulinum Impurity 38 CAS CATO-C4X-304738
| CAS No. | CATO-C4X-304738 |
| Molecular Formula | C34H56N2O5S2 |
| Molecular Weight | 636.95 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Lefamulinum Impurity 38.
Lefamulinum Impurity 38 (CAS CATO-C4X-304738) is a certified pharmaceutical impurity reference standard with the molecular formula C34H56N2O5S2 and a molecular weight of 636.95 g/mol.
Lefamulinum Impurity 38 (C34H56N2O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 38 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 | C34H56N2O5S2 |
| Molecular Weight | 636.95 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Lefamulinum Standards
- Lefamulinum Impurity 33 (CAS CATO-C4X-304733)
- Lefamulinum Impurity 16 (CAS CATO-C4X-304716)
- Lefamulinum Impurity 27 (CAS CATO-C4X-304727)
- Lefamulinum Impurity 8 (CAS CATO-C4X-30478)
- Lefamulinum Impurity 11 (CAS CATO-C4X-304711)
- Lefamulinum Impurity 26 (CAS CATO-C4X-304726)
- Lefamulinum Impurity 44 (CAS CATO-C4X-304744)
- Lefamulinum Impurity 36 (CAS CATO-C4X-304736)
Recommended Standards
- BDD26-ThCHO (CAS 2411657-11-7)
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- N-(7-(Benzo[d]thiazol-2-yl)-9,9-didecyl-9H-fluoren-2-yl)acetamide (CAS 880479-92-5)
- Abemaciclib Impurity 13 (CAS 1648707-16-7)
- Atropine Impurity 45 (CAS 2515-36-8)
- Galantamine EP Impurity E HBr (CAS 1201809-28-0)
- 2-Amino-5-chloro-N-(2-hydroxyethyl)benzamide (CAS 6725-11-7)
- Ceftaroline Fosamil Impurity 21 (CAS CATO-C4X-148321)
- 3-(4-(4-Nitrophenyl)butanamido)benzene-1-sulfonyl fluoride (CAS 19160-22-6)
- 1-(Quinolin-3-yl)pyrrolidin-2-one (CAS 177201-43-3)
- tert-Butyl (2-(2-chloroacetamido)ethyl)carbamate (CAS 149979-14-6)
- Akt Inhibitor (FPA-124) (CAS 902779-59-3)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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