N-[1-(4-Ethyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-2-phenylethyl]-4-fluorobenzene-1-sulfonamide CAS 338953-98-3
| CAS No. | 338953-98-3 |
| Molecular Formula | C18H19FN4O2S2 |
| Molecular Weight | 406.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-[1-(4-Ethyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-2-phenylethyl]-4-fluorobenzene-1-sulfonamide (CAS 338953-98-3), a certified reference material (molecular formula C18H19FN4O2S2, MW 406.50 g/mol) for analytical method development and quality control.
The molecular framework of N-[1-(4-Ethyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-2-phenylethyl]-4-fluorobenzene-1-sulfonamide (C18H19FN4O2S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H19FN4O2S2 |
| Molecular Weight | 406.50 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Recommended Standards
- MMP3 inhibitor 2 (CAS 208663-26-7)
- 870070-55-6 D9K857J81I Tozadenant [USAN:INN] UNII-D9K857J81I 1-Piperidinecarboxamide, 4-hydroxy-N-(4-methoxy-7-(4-morpholinyl)-2-benzothiazolyl)-4-methyl- 4-Hydroxy-N-(4-methoxy-7-morpholinobenzo(d)thiazol-2-yl)-4-methylpiperidine-1-carboxamide A2a (3) RO4494351 RO4494351-000 RO4494351-002 SYN115 Tozadenant SYN-115 RO-4494351 (CAS 870070-55-6)
- ARP 101 (CAS 849773-63-3)
- Tirofiban Impurity 72 (CAS CATO-C4X-125472)
- 4-Methanesulfonyl-3-methylaniline (CAS 1671-50-7)
- 1-(1-Benzylpyrrolidin-3-yl)-4-methyl-1H-pyrazol-5-amine (CAS 1152544-73-4)
- 2-Chloro-6-methyl-4-nitropyridine 1-oxide (CAS 40314-84-9)
- 1-(5-(Benzyloxy)-2,4-dichlorophenyl)-5-(2,6-difluorophenyl)-1H-tetrazole (CAS 338961-50-5)
- 4-(4-(Dimethylamino)phenyl)-7,7-dimethyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione (CAS 338778-01-1)
- 7-Chlorospiro[benzo[b][1,4]oxazine-2,1'-cyclopropan]-3(4H)-one (CAS 1895389-19-1)
- 4-Bromo-5-fluoro-2-nitroaniline (CAS 153505-36-3)
- N-(3-([1,2,4]Triazolo[1,5-a]pyrimidin-6-yl)propyl)-2-(2-chlorophenyl)acetamide (CAS 2034376-30-0)
- 5-fluorospiro[2,3-dihydro-1H-isoquinoline-4,1'-cyclopropane];hydrochloride (CAS 1203684-97-2)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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