N-(4-(4-(4-Ethylphenyl)-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl)benzenesulfonamide CAS 917747-48-9
| CAS No. | 917747-48-9 |
| Molecular Formula | C22H20N4O2S2 |
| Molecular Weight | 436.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(4-(4-(4-Ethylphenyl)-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl)benzenesulfonamide (CAS 917747-48-9) is a high-purity analytical reference standard with the molecular formula C22H20N4O2S2 and a molecular weight of 436.55 g/mol.
N-(4-(4-(4-Ethylphenyl)-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl)benzenesulfonamide (C22H20N4O2S2) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C22H20N4O2S2 |
| Molecular Weight | 436.55 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related N Standards
- 3-(((4-Ethylphenyl)amino)methylene)-1-(4-methylbenzyl)-1H-benzo[c][1,2]thiazin-4(3H)-one 2,2-dioxide (CAS 893311-97-2)
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- Ethyl 1-(3-(4-ethylphenyl)-3-(2,2,2-trifluoroacetamido)propanoyl)piperidine-4-carboxylate (CAS 866019-27-4)
Recommended Standards
- N-(4-(4-(2,3-Dimethylphenyl)-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl)benzenesulfonamide (CAS 917747-56-9)
- N-(4-methoxybenzyl)-2-((4-phenyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 502553-59-5)
- Dabsyl-L-methionine (CAS 97684-99-6)
- 10-(Triethylsilyl)benzo[lmn]thieno[2,3-f][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 2195419-19-1)
- N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2-oxoimidazolidine-1-carboxamide (CAS 1448059-58-2)
- rac-cis-[3-Benzoyloxycyclohexyl]benzamide (CAS 1346599-52-7)
- 2-Bromo-5-fluoro-1-iodo-3-(trifluoromethyl)benzene (CAS 1934934-44-7)
- 7-Bromo-1,2,3,4-tetrahydrocyclopenta[b]indol-2-amine hydrochloride (CAS 1363405-80-4)
- 3,5-Dichloro-N-(5,6-dimethyl-1-(4-methylbenzyl)-1H-benzo[d]imidazol-4-yl)benzenesulfonamide (CAS 338423-00-0)
- 1,4-Dibromo-2-difluoromethoxy-5-fluorobenzene (CAS 1803833-38-6)
- (1R,2R)-2-(fluoromethyl)cyclobutan-1-amine hydrochloride (CAS 2490314-41-3)
- 2-Amino-5-fluoro-4-hydroxy-quinazoline (CAS 142465-05-2)
- 3-(2-Methoxyphenyl)-1-(3,4,5-trifluorophenyl)propan-1-one (CAS 898774-19-1)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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