3-(3-Chlorophenyl)-4-(ethylsulfonyl)-1H-pyrazole CAS 1707567-07-4
| CAS No. | 1707567-07-4 |
| Molecular Formula | C11H11ClN2O2S |
| Molecular Weight | 270.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(3-Chlorophenyl)-4-(ethylsulfonyl)-1H-pyrazole 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 3-(3-Chlorophenyl)-4-(ethylsulfonyl)-1H-pyrazole (CAS 1707567-07-4), a certified reference material (molecular formula C11H11ClN2O2S, MW 270.74 g/mol) for analytical method development and quality control.
Structurally, 3-(3-Chlorophenyl)-4-(ethylsulfonyl)-1H-pyrazole (C11H11ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 270.74 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C11H11ClN2O2S |
| Molecular Weight | 270.74 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.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 4-(2-Chlorophenyl)-3-(ethylsulfonyl)-1H-pyrazole (CAS 1708259-41-9)
- 1-(2-((4-Chlorophenyl)thio)acetyl)pyrazolidin-3-one (CAS 477850-53-6)
- (2E)-3-(3-Chlorophenyl)-1-(4-ethylphenyl)prop-2-en-1-one (CAS 1176509-18-4)
- (2E)-1-(2-Chlorophenyl)-3-(4-ethylphenyl)prop-2-en-1-one (CAS 1354941-55-1)
- (2E)-3-(3-Chlorophenyl)-1-(2,4-dimethylphenyl)prop-2-en-1-one (CAS 1354941-81-3)
- (2E)-1-(3-Chlorophenyl)-3-(4-ethylphenyl)prop-2-en-1-one (CAS 1354942-21-4)
- (2E)-3-(4-Chlorophenyl)-1-(4-ethylphenyl)prop-2-en-1-one (CAS 1410102-49-6)
- (3-Chlorophenyl)(2,5-difluorobenzyl)sulfane (CAS 1443303-30-7)
Recommended Standards
- Ethyl 4-chloro-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylate (CAS 148838-70-4)
- 4-Chloro-2-phenylthieno[3,2-c]pyridine-7-carbonitrile (CAS 1361197-82-1)
- n-(6-Chloro-4-methylbenzo[d]thiazol-2-yl)-N-methylglycine (CAS 1353000-00-6)
- 1-(2-Phenylethyl)-1H-pyrazole-5-sulfonyl chloride (CAS 2031258-60-1)
- 2-Chloro-4-iodo-5-(methoxymethoxy)pyridine (CAS 877133-57-8)
- 5-amino-1-(4-methylbenzenesulfonyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 240117-38-8)
- 2,6-Diamino-5-(6-(oxazol-2-yl)-6-oxohexyl)pyrimidin-4(1H)-one (CAS 647831-22-9)
- 2-hydroxycyclopropane-1-carboxylic acid (CAS 92574-19-1)
- Gandotinib (CAS 1229236-86-5)
- rac erythro-3-(4-Nitrobenzamido)nonan-2-ol (CAS 119691-06-4)
- N-(6-((2-(Benzo[d]thiazol-2-ylamino)-2-oxoethyl)thio)pyridazin-3-yl)benzamide (CAS 1021075-39-7)
- N-isopropylpiperazine-1-carboxamide hydrochloride (CAS 1258651-80-7)
- 1-Chloro-2-Iodo-1,1,2-Trifluoroethane (CAS 354-26-7)
- Neuropeptide SF (human) (CAS 192387-39-6)
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