3-{3-[(benzenesulfonyl)methyl]-4-nitrophenyl}-1H-pyrazole CAS 318247-39-1
| CAS No. | 318247-39-1 |
| Molecular Formula | C16H13N3O4S |
| Molecular Weight | 343.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-{3-[(benzenesulfonyl)methyl]-4-nitrophenyl}-1H-pyrazole 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.
3-{3-[(benzenesulfonyl)methyl]-4-nitrophenyl}-1H-pyrazole (CAS 318247-39-1) is a high-purity analytical reference standard with the molecular formula C16H13N3O4S and a molecular weight of 343.36 g/mol.
3-{3-[(benzenesulfonyl)methyl]-4-nitrophenyl}-1H-pyrazole (C16H13N3O4S) contains a flavonoid 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. 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.
Physical & Chemical Properties
| Molecular Formula | C16H13N3O4S |
| Molecular Weight | 343.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related benzenesulfonyl Standards
- 1-(Benzenesulfonyl)-3-[(3-chlorophenyl)sulfanyl]propan-2-ol (CAS 338409-59-9)
- 1-(Benzenesulfonyl)-3-[(4-chlorophenyl)sulfanyl]propan-2-ol (CAS 338409-57-7)
- 1-(Benzenesulfonyl)-3-(3-chloro-4-cyano-1,2-thiazol-5-yl)urea (CAS 866154-06-5)
- 1-(Benzenesulfonyl)-4-[(2E)-3-phenylprop-2-en-1-yl]piperazine (CAS 325779-72-4)
- 7-(benzenesulfonyl)-2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1131992-22-7)
- 4-[(Benzenesulfonyl)methyl]-6-chloro-2-phenylpyrimidine (CAS 303147-39-9)
- 5-(Benzenesulfonyl)-4-(2-chlorophenyl)-2-methylpyrimidine (CAS 400089-29-4)
- 1-(benzenesulfonyl)-4-phenylpiperidine-4-carboxylic acid (CAS 101730-55-6)
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- 6-(((4-Methyl-4H-1,2,4-triazol-3-yl)thio)methyl)-4-oxo-4H-pyran-3-yl benzoate (CAS 877815-95-7)
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- 2-Fluoro-3-hydroxy-4-(trifluoromethyl)benzoic acid (CAS 2379321-98-7)
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