1-(Difluoromethyl)-3,5-dimethyl-1h-pyrazole-4-sulfonyl chloride CAS 943152-92-9
| CAS No. | 943152-92-9 |
| Molecular Formula | C6H7ClF2N2O2S |
| Molecular Weight | 244.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(Difluoromethyl)-3,5-dimethyl-1h-pyrazole-4-sulfonyl chloride 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.
CATO supplies 1-(Difluoromethyl)-3,5-dimethyl-1h-pyrazole-4-sulfonyl chloride (CAS 943152-92-9), a certified reference material (molecular formula C6H7ClF2N2O2S, MW 244.65 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H7ClF2N2O2S, 1-(Difluoromethyl)-3,5-dimethyl-1h-pyrazole-4-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C6H7ClF2N2O2S |
| Molecular Weight | 244.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Difluoromethyl Standards
- 4-(difluoromethyl)-1,3-dimethyl-1H-pyrazole-5-sulfonyl chloride (CAS 1909308-90-2)
- 3-(Difluoromethyl)-4-fluorobenzene-1-sulfonyl chloride (CAS 2091597-77-0)
- 1-(difluoromethyl)-5-iodo-1H-1,2,4-triazole (CAS 2919671-31-9)
- 1-(difluoromethyl)-5-iodo-triazole (CAS 2845318-50-3)
- 1-(4-((Difluoromethyl)thio)phenyl)piperazine (CAS 1247612-92-5)
- 7-(Difluoromethyl)-2-(methylthio)-7,8-dihydroquinazolin-5(6H)-one (CAS 1706433-08-0)
- Methyl 2-(3-(difluoromethyl)-4,5,6,7-tetrahydro-1h-indazol-1-yl)acetate (CAS 938001-65-1)
- 4-(5-(Difluoromethyl)thiophen-2-yl)-2-fluorophenol (CAS 2092285-71-5)
Recommended Standards
- 1-(2-Chloroethoxy)-2-diethoxyphosphoryl-ethane (CAS 69404-49-5)
- 2-[(4-Chloro-2,1,3-benzothiadiazol-5-yl)oxy]acetic Acid (CAS 29308-14-3)
- 2-Chloro-N-(2-((4-fluorophenyl)amino)-2-oxoethyl)acetamide (CAS 746607-50-1)
- N'-(3-chloropropanoyl)-4-fluorobenzohydrazide (CAS 1823188-48-2)
- H-Glu(OBzl)-OBzl · p-tosylate (CAS 2791-84-6)
- 7-bromo-5-nitro-2,3-dihydrobenzo[b][1,4]dioxine (CAS 69464-52-4)
- 2-((2-(Tert-butyl)cyclohexyl)amino)propan-1-ol (CAS 1218223-64-3)
- Finerenone Impurity 180 (CAS CATO-C4X-2880180)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)prop-2-en-1-amine hydrochloride (CAS 1212870-27-3)
- 2-(5-Nitrofuran-2-yl)-5,6,7,8-tetrahydroquinazolin-4(1H)-one (CAS 61378-80-1)
- N-(4-chloro-6-propylpyrimidin-2-yl)-n-(2,4-difluorophenyl)guanidine (CAS 680214-82-8)
- 4-Acetoxy-2,3,5,6-tetrafluorobenzoic acid (CAS 83789-90-6)
- 3,3-Diaminoacrylonitrile (CAS 266338-29-8)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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