Febuxostat Impurity 16 CAS 1335202-60-2
| CAS No. | 1335202-60-2 |
| Molecular Formula | C15H16N2OS |
| Molecular Weight | 272.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, Febuxostat Impurity 16 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 272.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a process- or degradation-related impurity, Febuxostat Impurity 16 (CAS 1335202-60-2, C15H16N2OS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 16 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 | C15H16N2OS |
| Molecular Weight | 272.37 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Febuxostat Standards
- Febuxostat Impurity 4 (CAS CATO-C4X-11624)
- Febuxostat Impurity 52 (CAS CATO-C4X-116252)
- Febuxostat Impurity 7 (CAS 1330632-46-6)
- Febuxostat Impurity 22 (CAS CATO-C4X-116222)
- Febuxostat Impurity 27 (CAS CATO-C4X-116227)
- Febuxostat Impurity 20 (CAS CATO-C4X-116220)
- Febuxostat impurity 127 (CAS CATO-C4X-1162103)
- Febuxostat Impurity 3 (CAS 161797-99-5)
Recommended Standards
- tert-butyl (2S,4R)-4-azido-2-(methylsulfanylmethyl)pyrrolidine-1-carboxylate (CAS 2749601-01-0)
- Equilin-D4 (CAS 285979-79-5)
- N-Ethyl-2-(1-(quinolin-2-yl)ethylidene)hydrazinecarbothioamide (CAS 88324-33-8)
- Z,Z-Dienestrol-d6 (CAS 91297-99-3)
- Bosutinib Impurity 33 (CAS 709-09-1)
- Apremilast impurity 9 (CAS CATO-C4X-10099)
- Relebactam Impurity 89 (CAS 1174019-43-2)
- 2-(5-Cyclopentyl-1,2,4-oxadiazol-3-yl)morpholine hydrochloride (CAS 1707602-55-8)
- 2-Chloro-5-(trifluoromethyl)pyridine-3,4-dicarboxylic acid (CAS 518989-97-4)
- 6-(Trifluoromethylthio) picolinonitrile (CAS 1204234-71-8)
- N,3-diethyl-5-methylisoxazole-4-carboxamide (CAS 945126-34-1)
- Ethyl (2Z)-2-chloro-2-[2-(4-chloro-3-nitrophenyl)hydrazin-1-ylidene]acetate (CAS 1264089-45-3)
- 1,1'-[(1S,3S)-1,3-dimethyl-1,3-propanediyl]bis[1,1-bis[4-(1,1-dimethylethyl)phenyl]-Phosphine (CAS 911415-22-0)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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