1-(4-Cyanophenyl)ethane-1-sulfonyl chloride CAS 1248041-89-5
| CAS No. | 1248041-89-5 |
| Molecular Formula | C9H8ClNO2S |
| Molecular Weight | 229.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Cyanophenyl)ethane-1-sulfonyl chloride (CAS 1248041-89-5), molecular formula C9H8ClNO2S and molecular weight 229.68 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H8ClNO2S, 1-(4-Cyanophenyl)ethane-1-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 229.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 1-(4-Cyanophenyl)ethane-1-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.
Physical & Chemical Properties
| Molecular Formula | C9H8ClNO2S |
| Molecular Weight | 229.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Cyanophenyl Standards
- N-(4-cyanophenyl)piperidine-4-carboxamide (CAS 1016734-18-1)
- 1-[(2-cyanophenyl)methyl]pyrrolidine-2-carboxamide (CAS 1282172-13-7)
- 5-(4-Cyanophenyl)thiophene-2-carboxylic acid (CAS 15961-48-5)
- N1-(2-Cyanophenyl)-N2-cyclopropyloxalamide (CAS 898356-04-2)
- (S)-2-[3-(4-Cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetic acid, 97% (CAS 170726-81-5)
- (R)-2-[3-(4-Cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetic acid, 97% (CAS 181023-08-5)
- 1-(3-Cyanophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 954267-27-7)
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Recommended Standards
- 2-Methyl-1H-indole-3-sulfonyl chloride (CAS 1216116-64-1)
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- 2-Chloro-6,7-dimethoxybenzo[d]thiazole (CAS 1188246-96-9)
- (S)-1-(2-Chloro-6-fluorobenzyl)pyrrolidin-3-ol (CAS 1289585-19-8)
- 4-(2-fluorobenzyl)piperidine (CAS 194288-97-6)
- Ethyl 4-(carbamoylamino)piperidine-1-carboxylate (CAS 1016857-27-4)
- 1-(1-Amino-1H-pyrrol-2-yl)-2-methylpropan-1-one (CAS 790633-11-3)
- 5-Methylfuro[3,2-b]pyridine (CAS 56473-94-0)
- EMImPF6 (CAS 155371-19-0)
- 2-ethyl-2-methyl-2,3-dihydroquinazolin-4(1H)-one (CAS 1012-59-5)
- 2-(Dimethylamino)-6-(trifluoromethyl)phenol (CAS 1243360-88-4)
- 4-Fluoro-6-methoxypyrimidine (CAS 51421-95-5)
- Dimethylzinc (1.0 M in Heptane) (CAS 544-97-8)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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