Leucogen Impurity 4 CAS CATO-C4X-28894
| CAS No. | CATO-C4X-28894 |
| Molecular Formula | C15H19NO4S |
| Molecular Weight | 309.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Leucogen Impurity 4 (C15H19NO4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Leucogen Impurity 4 (CAS CATO-C4X-28894), a pharmacopoeial impurity reference standard (molecular formula C15H19NO4S, MW 309.38 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.
CATO manufactures Leucogen Impurity 4 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 | C15H19NO4S |
| Molecular Weight | 309.38 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 |
| 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 17 (CAS CATO-C4X-288917)
- Leucogen Impurity 9 (CAS CATO-C4X-28899)
- Leucogen Impurity 6 (CAS CATO-C4X-28896)
- Leucogen Impurity 16 (CAS CATO-C4X-288916)
- 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)
Recommended Standards
- trans-1'-(Methylsulfonyl)spiro[cyclohexane-1,3'-indoline]-4-carboxylic acid (CAS 268538-56-3)
- N-(2-Phenyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)thiophene-2-carboxamide (CAS 1043104-29-5)
- Thiorphan Impurity 2 (CAS 81110-05-6)
- 2-((1,5-Diphenyl-1H-imidazol-2-yl)thio)acetamide (CAS 1099793-03-9)
- Dabigatran Impurity 42 (CAS 42288-26-6)
- Riociguat Impurity 24 (CAS 256376-62-2)
- Fenofibrate Impurity 2 (CAS 62809-66-9)
- 2,2-Dimethyl-5-(((4-phenoxyphenyl)amino)methylene)-1,3-dioxane-4,6-dione (CAS 909344-66-7)
- 4-(4-Hexylphenyl)-4-oxobutanoic acid (CAS 64779-08-4)
- Tert-butyl 3-(piperidin-2-yl)pyrrolidine-1-carboxylate (CAS 929974-14-1)
- 2-(Furan-2-yl)acetohydrazide (CAS 98134-84-0)
- N-Ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 1220696-19-4)
- 7-Methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2(1H)-thione (CAS 100114-29-2)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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