Febuxostat Impurity 01 CAS 886501-78-6
| CAS No. | 886501-78-6 |
| Molecular Formula | C11H9NO3S |
| Molecular Weight | 235.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Febuxostat Impurity 01 (CAS 886501-78-6), a pharmacopoeial impurity reference standard (molecular formula C11H9NO3S, MW 235.26 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H9NO3S, Febuxostat Impurity 01 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.26 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).
CATO manufactures Febuxostat Impurity 01 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 | C11H9NO3S |
| Molecular Weight | 235.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Febuxostat Standards
- Febuxostat impurity 128 (CAS CATO-C4X-1162104)
- Febuxostat Impurity 40 (CAS CATO-C4X-116240)
- Febuxostat Impurity 33 (CAS 100118-38-5)
- Febuxostat impound 107 (CAS 2227293-69-6)
- Febuxostat impurity 108 (CAS 1267681-15-1)
- Febuxostat Impurity 38 (CAS 528607-60-5)
- Febuxostat Impurity 39 (CAS 161718-85-0)
- Febuxostat Impurity 19 (CAS CATO-C4X-116219)
Recommended Standards
- Ethyl 2-(pyridazin-4-yl)thiazole-4-carboxylate (CAS 955399-62-9)
- Methyl 3-(pyridin-3-yl)-2-thioxo-2,3-dihydro-1H-imidazole-4-carboxylate (CAS 2106286-75-1)
- Ethyl 2-(pyrazin-2-yl)thiazole-4-carboxylate (CAS 256529-19-8)
- Methyl 4-(5-amino-1,3,4-thiadiazol-2-yl)benzoate (CAS 51542-42-8)
- Haloperidol Impurity 21 (CAS 3874-54-2)
- Moxidectin EP Impurity L (CAS 119718-45-5)
- Itraconazole Impurity 15 (CAS 2508172-07-2)
- 3-Bromo-5-difluoromethoxy-4-methylpyridine (CAS 1805526-46-8)
- 3-Hydrazinylisoquinoline (CAS 67107-32-8)
- 2,4,6,8-Tetrachloroquinoline (CAS 1447958-11-3)
- 5,5'-Dibromo-2,2'-dimethoxy-1,1'-biphenyl (CAS 100542-54-9)
- Methyl 2-methoxy-5-(2-methylthiazol-4-yl)benzoate (CAS 1416346-03-6)
- 1-Phenyl-3,4-dihydroisoquinoline-7-carbaldehyde (CAS 823236-18-6)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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