1-[(4-chlorophenyl)methyl]-1h-pyrazole-4-sulfonyl chloride CAS 1179625-82-1
| CAS No. | 1179625-82-1 |
| Molecular Formula | C10H8Cl2N2O2S |
| Molecular Weight | 291.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.15 g/mol gives 1-[(4-chlorophenyl)methyl]-1h-pyrazole-4-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-[(4-chlorophenyl)methyl]-1h-pyrazole-4-sulfonyl chloride (CAS 1179625-82-1) is a high-purity analytical reference standard with the molecular formula C10H8Cl2N2O2S and a molecular weight of 291.15 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 1-[(4-chlorophenyl)methyl]-1h-pyrazole-4-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-[(4-chlorophenyl)methyl]-1h-pyrazole-4-sulfonyl chloride 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 | C10H8Cl2N2O2S |
| Molecular Weight | 291.15 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related chlorophenyl Standards
- 1-(4-chlorophenyl)-5-methyl-1H-pyrazole-4-sulfonyl chloride (CAS 1291374-78-1)
- Bis(3-chlorophenyl)-1H-1,2,3,4-tetrazole (CAS 338411-24-8)
- 2,5-Bis-(3-chlorophenyl)-1,3,4-oxadiazole (CAS 2639-17-0)
- 2,5-Bis(4-chlorophenyl)-1,3,4-oxadiazole (CAS 2491-90-9)
- 2,2-Bis(4-chlorophenyl)cyclopropanecarbaldehyde (CAS 65498-79-5)
- 3,5-Bis(4-chlorophenyl)-4,5-dihydro-1H-pyrazole (CAS 50800-82-3)
- Bis[(3-chlorophenyl)methyl](cyano)amine (CAS 866048-83-1)
- 1-(2-Chlorophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-48-1)
Recommended Standards
- 6,8-Dichloro-3-methyl-2-(methylsulfinyl)quinazolin-4(3H)-one (CAS 1171486-58-0)
- 4-[6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazin-2-yl]morpholine (CAS 1186041-99-5)
- 2-Amino-N,N-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinamide (CAS 1092580-90-9)
- 4-(6-Bromoindolin-1-yl)pyrimidin-2-amine hcl (CAS 1202765-50-1)
- 3-[4-(3-Chloro-phenyl)-piperazin-1-yl]-propionic acid (CAS 117017-83-1)
- 6-Bromo-5-methyl-2,3-dihydrobenzo[b][1,4]dioxine (CAS 69464-39-7)
- ((S)-3-Amino-2-fluoropropyl)phosphinic acid (CAS 344413-68-9)
- n-((5-Chloro-1,3-dimethyl-1h-pyrazol-4-yl)methyl)-2-phenylethan-1-amine (CAS 1333547-21-9)
- (S)-tert-Butyl 1-pivaloylpyrrolidin-3-ylcarbamate (CAS 1286208-13-6)
- tert-Butyl ethyl((1-(2-hydroxyethyl)piperidin-4-yl)methyl)carbamate (CAS 1353966-55-8)
- 3-(pyridin-3-yl)propanehydrazide (CAS 320608-52-4)
- 4-(2-Fluorophenyl)-3-(methylsulfonyl)-1H-pyrazole (CAS 1713477-28-1)
- 1-BROMO-4-FLUORO-3-NITROBENZENE 2-FLUORO-5-BROMONITROBENZENE 364-73-8 4-BROMO-1-FLUORO-2-NITROBENZENE 5-BROMO-2-FLUORONITROBENZENE BC002059 BENZENE, 4-BROMO-1-FLUORO-2-NITRO- (CAS 364-73-8)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
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