N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N-ethyl-4-methoxybenzene-1-sulfonamide CAS 1707586-32-0
| CAS No. | 1707586-32-0 |
| Molecular Formula | C19H21N3O4S2 |
| Molecular Weight | 419.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N-ethyl-4-methoxybenzene-1-sulfonamide (CAS 1707586-32-0) is a high-purity analytical reference standard with the molecular formula C19H21N3O4S2 and a molecular weight of 419.52 g/mol.
Based on its molecular formula C19H21N3O4S2, N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N-ethyl-4-methoxybenzene-1-sulfonamide contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 419.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C19H21N3O4S2 |
| Molecular Weight | 419.52 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related N Standards
- N-{5,6-dimethyl-1-[(4-methylphenyl)methyl]-1H-1,3-benzodiazol-4-yl}-4-methylbenzene-1-sulfonamide (CAS 338423-17-9)
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- 4-[3,5-Dimethyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-ylmethyl]-piperidine-1-carboxylic acid tert-butyl ester (CAS 1092564-22-1)
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Recommended Standards
- N-[2-[[[2-Methoxy-6-[(2-methyl-3-biphenylyl)methoxy]-3-pyridyl]methyl]amino]ethyl]acetamide (CAS 1675203-84-5)
- 1-(4-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidin-1-yl)-4-phenylbutan-1-one (CAS 1775297-98-7)
- LDN 214117 (CAS 1627503-67-6)
- 1-(4-Butoxybenzoyl)-4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperidine (CAS 1775468-02-4)
- Methyl 2-(2-hydroxy-5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetate (CAS 2870647-61-1)
- ((3-Methylnaphthalen-1-yl)methyl)triphenylphosphonium bromide (CAS 77028-94-5)
- methyl 3-(bromomethyl)thiophene-2-carboxylate (CAS 59961-15-8)
- 2,2',5,5'-Tetrachlorobenzidine (CAS 15721-02-5)
- 2-Hydroxy-1-(1-oxa-7-azaspiro[3.5]Nonan-7-yl)ethan-1-one (CAS 1864254-35-2)
- (2E)-3-(Dimethylamino)-2-[(E)-4-methylpiperazine-1-carbonyl]prop-2-enenitrile (CAS 551930-69-9)
- (5-Chloro-6-methoxypyridin-2-yl)methanol (CAS 1227564-32-0)
- (S)-5-Fluoro-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 2103399-35-3)
- (4-((4-Fluorobenzyl)oxy)phenyl)methanamine (CAS 849807-02-9)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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