Edaravone impurity 44 CAS CATO-C4X-106244
| CAS No. | CATO-C4X-106244 |
| Molecular Formula | C13H16N2O4S |
| Molecular Weight | 296.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Edaravone impurity 44 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 Edaravone impurity 44 (CAS CATO-C4X-106244), a pharmacopoeial impurity reference standard (molecular formula C13H16N2O4S, MW 296.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Edaravone impurity 44 (C13H16N2O4S) 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 296.34 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C13H16N2O4S |
| Molecular Weight | 296.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Edaravone Standards
- Edaravone Impurity 3 (CAS 1323485-71-7)
- Edaravone impurity 48 (CAS 87343-64-4)
- Edaravone impurity 45 (CAS CATO-C4X-106245)
- Edaravone Impurity 33 (CAS 2762440-12-8)
- Edaravone Impurity 34 (CAS 2762440-11-7)
- Edaravone impurity 35 (Mixture of Enantiomers) (CAS CATO-C4X-106235)
- Edaravone impurity 36 (Mixture of Enantiomers) (CAS CATO-C4X-106236)
- Edaravone impurity 49 (CAS CATO-C4X-106249)
Recommended Standards
- Citalopram Impurity 72 (CAS 62498-69-5)
- Linezolid Impurity C78 (CAS 952680-48-7)
- Aztreonam impurity 91 (CAS 80082-50-4)
- 301820-48-4 5-(2-Hydroxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one MFCD28505125 (CAS 301820-48-4)
- Aztreonam impurity 85 (CAS CATO-C4X-152285)
- Etoricoxib Impurity 31 (CAS 2724840-93-9)
- Mianserin Impurity 100 (CAS CATO-C4X-1369100)
- 2-(5-Methylpyrazin-2-yl)ethane-1-sulfonyl chloride (CAS 1196151-37-7)
- 2-Chloro-N-phenyl-4-(trifluoromethyl)pyrimidine-5-carboxamide (CAS 154563-42-5)
- 7-Methoxy-3-(phenylsulfonyl)isobenzofuran-1(3H)-one (CAS 65131-09-1)
- 2-(1,3-Dioxan-2-yl)ethan-1-amine (CAS 118599-06-7)
- trans-4-Aminostilbene (CAS 4309-66-4)
- 5-Hydroxyflavanone (CAS 22701-17-3)
- Peptide 431 (CAS CATO-CPTD788431)
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