Dimefline Impurity 11 CAS CATO-C4X-335111
| CAS No. | CATO-C4X-335111 |
| Molecular Formula | C21H24NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dimefline Impurity 11 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 Dimefline Impurity 11 (CAS CATO-C4X-335111), a pharmacopoeial impurity reference standard (molecular formula C21H24NO3Cl, MW 373.88 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C21H24NO3Cl, Dimefline Impurity 11 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 373.88 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 | C21H24NO3 Cl |
| Molecular Weight | 373.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dimefline Standards
Recommended Standards
- Lubiprostone Impurity 36 (CAS 321457-71-0)
- Nicorandil Impurity 49 2Nitrat (CAS 2365474-06-0)
- Colchicine EP Impurity G (CAS 6901-14-0)
- N-Butylsulfamide (CAS 42731-63-5)
- Ethyl 2-(3-bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-2-methylpropanoate (CAS 2387601-62-7)
- N-((2-(2,3-Dimethylphenyl)benzo[d]oxazol-5-yl)carbamothioyl)-3,4-dimethoxybenzamide (CAS 590396-73-9)
- Glisindamide (CAS 71010-45-2)
- 5-Chloro-3-methoxythiophene-2-carboxylic acid (CAS 62910-69-4)
- Methyl 3-chloro-5-[4-(hydroxymethyl)phenyl]benzoate (CAS 1820683-81-5)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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