Leucogen Impurity 2 CAS CATO-C4X-28892
| CAS No. | CATO-C4X-28892 |
| Molecular Formula | C13H15NO4S |
| Molecular Weight | 281.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Leucogen Impurity 2 (C13H15NO4S) contains a nitrogen-containing heterocyclic scaffold, 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 281.33 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Leucogen Impurity 2 (CAS CATO-C4X-28892), a pharmacopoeial impurity reference standard (molecular formula C13H15NO4S, MW 281.33 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H15NO4S |
| Molecular Weight | 281.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Leucogen Standards
- Leucogen Impurity 3 (CAS CATO-C4X-28893)
- Leucogen (CAS 1950-36-3)
- Leucogen Impurity 10 (CAS CATO-C4X-288910)
- Leucogen Impurity 11 (CAS CATO-C4X-288911)
- Leucogen Impurity 12 (CAS CATO-C4X-288912)
- Leucogen Impurity 13 (CAS CATO-C4X-288913)
- Leucogen Impurity 14 (CAS CATO-C4X-288914)
- Leucogen Impurity 8 (CAS 97418-52-5)
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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