4-(3,5-Bis(4-methoxyphenyl)-1H-pyrazol-1-yl)benzenesulfonamide CAS 143809-39-6
| CAS No. | 143809-39-6 |
| Molecular Formula | C23H21N3O4S |
| Molecular Weight | 435.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(3,5-Bis(4-methoxyphenyl)-1H-pyrazol-1-yl)benzenesulfonamide (CAS 143809-39-6), molecular formula C23H21N3O4S and molecular weight 435.50 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-(3,5-Bis(4-methoxyphenyl)-1H-pyrazol-1-yl)benzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 435.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-(3,5-Bis(4-methoxyphenyl)-1H-pyrazol-1-yl)benzenesulfonamide 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 | C23H21N3O4S |
| Molecular Weight | 435.50 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bis Standards
- 3-(3-Methoxyphenyl)-1-(4-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidin-1-yl)propan-1-one (CAS 1775298-12-8)
- Methyl 3-(4-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidine-1-carbonyl)benzoate (CAS 1775304-10-3)
- 2-{[(4-methoxyphenyl)carbamoyl]amino}-2-phenylethyl N-(4-methoxyphenyl)carbamate (CAS 338963-00-1)
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- 1-(2-Methoxyphenyl)-4-((2,4,5-trichlorophenyl)sulfonyl)piperazine (CAS 669726-08-3)
- Ethyl 2-{[4-(4-methoxyphenyl)-1,3-thiazol-2-yl][4-(trifluoromethyl)phenyl]amino}acetate (CAS 860784-12-9)
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- 3-[4-(4-Methoxyphenyl)piperazine-1-carbonyl]-5-methyl-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazolin-11-one (CAS 1574560-79-4)
Recommended Standards
- N-(2-Ethoxyphenyl)-2-[7-(4-methoxyphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide (CAS 1207048-94-9)
- (2E)-2-{4-[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl]-1,3-thiazol-2-yl}-3-(naphthalen-1-yl)prop-2-enenitrile (CAS 866051-09-4)
- 3-{3-tert-butyl-1-methyl-4-oxo-1H,4H-indeno[1,2-c]pyrazol-6-yl}-1-(4-nitrophenyl)thiourea (CAS 1119392-40-3)
- (4S)-2-[[2-(Diphenylphosphino)phenyl]methyl]-4,5-dihydro-4-(phenylmethyl)oxazole (CAS 947618-05-5)
- tert-butyl N-[(4-bromo-1-methyl-1H-pyrazol-5-yl)methyl]carbamate (CAS 2018251-37-9)
- 1244-78-6 2-(3,4-Dimethoxyphenyl)-3-hydroxy-5,7-dimethoxy-4H-chromen-4-one 2-(3,4-dimethoxyphenyl)-3-hydroxy-5,7-dimethoxy-chromen-4-one 3-Hydroxy-3',4', 5,7-tetramethoxyflavone 4H-1-Benzopyran-4-one, 2-(3, 4-dimethoxyphenyl)-3-hydroxy-5,7-dimethoxy- Flavone, 3-hydroxy-3',4',5,7-tetramethoxy- NSC102049 Quercetin tetramethyl(3',4',5,7) ether (CAS 1244-78-6)
- 2-Phenyl-4-(p-tolyloxy)-5-tosylpyrimidine (CAS 478080-86-3)
- (4-(Thiazol-2-yl)furan-2-yl)boronic acid (CAS 2096336-38-6)
- 3-(3-Amino-2,4,6-triiodophenyl)propanoic acid (CAS 1206-91-3)
- 4-Bromo-1-butyl-1H-pyrazole-3-carboxylic acid (CAS 1006493-75-9)
- (4-Chloro-2-propylpyrimidin-5-yl)boronic acid (CAS 2225177-29-5)
- Rottlerin (CAS 82-08-6)
- 1,1-dioxide-5-Bromo-2-(tert-butyl)benzo[d]isothiazol-3(2H)-one (CAS 908602-52-8)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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