| CAS No. | 1173787-17-1 |
| Molecular Formula | C18H19N3O3S2 |
| Molecular Weight | 389.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N,4-dimethylbenzenesulfonamide 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.
CATO supplies N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N,4-dimethylbenzenesulfonamide (CAS 1173787-17-1), a certified reference material (molecular formula C18H19N3O3S2, MW 389.49 g/mol) for analytical method development and quality control.
The molecular framework of N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N,4-dimethylbenzenesulfonamide (C18H19N3O3S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. 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.
| Molecular Formula | C18H19N3O3S2 |
| Molecular Weight | 389.49 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |