methyl 5-(4-chlorophenyl)-1-(4-sulfamoylphenyl)pyrazole-3-carboxylate CAS 170571-20-7
| CAS No. | 170571-20-7 |
| Molecular Formula | C17H14ClN3O4S |
| Molecular Weight | 391.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 5-(4-chlorophenyl)-1-(4-sulfamoylphenyl)pyrazole-3-carboxylate (C17H14ClN3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies methyl 5-(4-chlorophenyl)-1-(4-sulfamoylphenyl)pyrazole-3-carboxylate (CAS 170571-20-7), a certified reference material (molecular formula C17H14ClN3O4S, MW 391.83 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), methyl 5-(4-chlorophenyl)-1-(4-sulfamoylphenyl)pyrazole-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H14ClN3O4S |
| Molecular Weight | 391.83 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1,5-Dibromo-2-iodo-4-methoxybenzene (CAS 1695962-39-0)
- 1,3-Dibromo-2-iodo-4-methoxybenzene (CAS 808736-59-6)
- 1,3-Dibromo-2-iodo-5-methoxybenzene (CAS 201161-11-7)
- Tonabersat (CAS 175013-84-0)
- 2-(4-Methoxyphenyl)-5,5-dimethyloxazole-4(5H)-thione (CAS 306955-38-4)
- 1-(2-Methoxyethyl)-1H-pyrrole-2,5-dione (CAS 79364-17-3)
- Imidaprilat-d3 (CAS 1356019-69-6)
- N-(2-(phenylthio)ethyl)prop-2-en-1-amine (CAS 188642-29-7)
- 1-(1,3-Dimethyl-1H-pyrazol-4-yl)ethan-1-ol (CAS 108905-81-3)
- 1-(2-Methoxyphenyl)but-3-en-1-ol (CAS 24165-67-1)
- 7-Iodo-3-methyl-1H-indazole (CAS 1360931-32-3)
- Bicyclo[1.1.1]Pentan-1-yl(phenyl)methanone (CAS 117633-00-8)
- 6-Bromo-2,8-dimethylquinolin-4-amine (CAS 1189107-50-3)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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