Febuxostat Impurity 24 CAS 1335202-59-9
| CAS No. | 1335202-59-9 |
| Molecular Formula | C16H16N2O3S |
| Molecular Weight | 316.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Febuxostat Impurity 24 (CAS 1335202-59-9) is a certified pharmaceutical impurity reference standard with the molecular formula C16H16N2O3S and a molecular weight of 316.37 g/mol.
Structurally, Febuxostat Impurity 24 (C16H16N2O3S) 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 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 316.37 g/mol, it falls into the moderately-high-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.
CATO manufactures Febuxostat Impurity 24 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 | C16H16N2O3S |
| Molecular Weight | 316.37 g/mol |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Febuxostat Standards
- Febuxostat (CAS 144060-53-7)
- Febuxostat Impurity 112 (CAS CATO-C4X-1162112)
- Febuxostat Impurity 41 (CAS CATO-C4X-116241)
- Febuxostat Impurity 70 (CAS 1657014-33-9)
- Febuxostat Impurity 78 (CAS CATO-C4X-116278)
- Febuxostat t-Butyl Ether Acid Impurity (CAS 2418591-43-0)
- Febuxostat Impurity 110 (CAS 1346238-12-7)
- Febuxostat Impurity 59 (CAS 2073891-59-3)
Recommended Standards
- 56599-84-9 Methyl octadecanoate-13C18 Methyl stearate-13C18 (CAS 56599-84-9)
- tert-butyl N-(tert-butoxycarbonylamino)-N-(3-fluoro-1-bicyclo[1.1.1]pentanyl)carbamate (CAS 2538602-04-7)
- Efinaconazole Impurity 31 (CAS CATO-C4X-124331)
- N-tosylindoline-1-carboxamide (CAS 349428-05-3)
- Abemaciclib Impurity 82 (CAS CATO-C4X-293782)
- Ubrogepant Impurity 28 (CAS CATO-C4X-340228)
- Verteporfin Impurity 6 (CAS CATO-C4X-35496)
- {3-[(Benzyloxycarbonyl-isopropyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid (CAS 1353996-07-2)
- 5,6-Diamino-2-((4-(dimethylamino)phenyl)amino)pyrimidin-4(1H)-one (CAS 61693-29-6)
- (4-Bromo-3-methyl-1,2-phenylene)dimethanol (CAS 1447607-73-9)
- n-(Thiophen-2-ylmethyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-amine hydrochloride (CAS 1049733-16-5)
- 2-Amino-5-(1,3-dimethyl-1h-1,2,4-triazol-5-yl)phenol (CAS 1248158-62-4)
- (E)-tetrahydro-2H-pyran-3-carbaldehyde oxime (CAS 79710-89-7)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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