3-[(1-methyl-1h-pyrazol-4-yl)sulfamoyl]thiophene-2-carboxylic acid CAS 1153942-75-6
| CAS No. | 1153942-75-6 |
| Molecular Formula | C9H9N3O4S2 |
| Molecular Weight | 287.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-[(1-methyl-1h-pyrazol-4-yl)sulfamoyl]thiophene-2-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-[(1-methyl-1h-pyrazol-4-yl)sulfamoyl]thiophene-2-carboxylic acid (CAS 1153942-75-6) is a high-purity analytical reference standard with the molecular formula C9H9N3O4S2 and a molecular weight of 287.32 g/mol.
The molecular framework of 3-[(1-methyl-1h-pyrazol-4-yl)sulfamoyl]thiophene-2-carboxylic acid (C9H9N3O4S2) is characterized by a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9N3O4S2 |
| Molecular Weight | 287.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Recommended Standards
- 5-(N-Methylsulfamoyl)-N-(thiazol-2-yl)furan-2-carboxamide (CAS 1147663-58-8)
- 1-(4-Amino-3-(trifluoromethyl)phenyl)-N,N-dimethylpiperidin-4-amine (CAS 1154664-52-4)
- 4-Phenyl-2,6-di(1H-pyrazol-1-yl)pyridine (CAS 1146616-48-9)
- Benzenamine, 4-[4-(1-methylethyl)-1-piperazinyl]-2-(trifluoromethyl)- (CAS 1155111-03-7)
- (5-Chlorobenzo[d]thiazol-2-yl)methyl 4-methylbenzenesulfonate (CAS 100865-43-8)
- (2-Amino-3-chloropyridin-4-yl)methanol (CAS 1807019-27-7)
- (2R,3R)-3-(Boc-amino)-3-(4-chlorophenyl)-2-methylpropanoic Acid (CAS 1217443-77-0)
- (1E,2E)-N-(4-Bromo-3-methylphenyl)-3-phenylprop-2-en-1-imine (CAS 301194-02-5)
- tert-Butyl 7’-fluoro-2’,4’-dihydro-1’H-spiro[piperidine-4,3’-quinoline]-1-carboxylate (CAS 1402232-83-0)
- 1-Amino-cyclopropanecarboxylic acid (6-trifluoromethoxybenzothiazol-2-yl)amide (CAS 1581457-66-0)
- methyl 5-({[amino(imino)methyl]thio}methyl)-2-furoate hydrochloride (CAS 108989-46-4)
- 4-Chloro-N-(4-(4-methylpiperidin-1-yl)-4-oxobutyl)benzenesulfonamide (CAS 881937-57-1)
- 4-(3-Hydroxypropyl)-4H-1,2,4-triazole (CAS 27106-94-1)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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