(2E)-2-(Benzenesulfonyl)-3-{2-[(4-chlorophenyl)sulfanyl]-5-nitrophenyl}prop-2-enenitrile CAS 1025642-11-8
| CAS No. | 1025642-11-8 |
| Molecular Formula | C21H13ClN2O4S2 |
| Molecular Weight | 456.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2E)-2-(Benzenesulfonyl)-3-{2-[(4-chlorophenyl)sulfanyl]-5-nitrophenyl}prop-2-enenitrile (C21H13ClN2O4S2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(2E)-2-(Benzenesulfonyl)-3-{2-[(4-chlorophenyl)sulfanyl]-5-nitrophenyl}prop-2-enenitrile (CAS 1025642-11-8), molecular formula C21H13ClN2O4S2 and molecular weight 456.92 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures (2E)-2-(Benzenesulfonyl)-3-{2-[(4-chlorophenyl)sulfanyl]-5-nitrophenyl}prop-2-enenitrile 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 | C21H13ClN2O4S2 |
| Molecular Weight | 456.92 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related E Standards
- 4-(Benzenesulfonyl)-3-{4-[(4-fluorophenyl)methoxy]-3-methoxyphenyl}-2-methyl-1,2-oxazolidine (CAS 321432-18-2)
- 5-[4-(Benzenesulfonyl)-1-phenyl-1H-pyrazol-5-yl]-4-methyl-2-phenyl-1,3-thiazole (CAS 955962-74-0)
- 3-(Benzenesulfonyl)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine (CAS 904575-98-0)
- 7-(Benzenesulfonyl)-2,4-dichloro-6-iodo-7H-pyrrolo[2,3-d]pyrimidine (CAS 1638763-86-6)
- (E)-[2-(Benzenesulfonyl)-2-(6-chloropyridin-3-yl)ethylidene][(2-chloro-4-fluorophenyl)methoxy]amine (CAS 478048-60-1)
- 5-(Benzenesulfonyl)-4-[(4-tert-butylphenyl)sulfanyl]-2-phenylpyrimidine (CAS 478080-95-4)
- 1-(Benzenesulfonyl)-4,6-dichloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 2055841-50-2)
- 4-[(Benzenesulfonyl)methyl]-6-[(4-chlorophenyl)sulfanyl]-2-phenylpyrimidine (CAS 303147-45-7)
Recommended Standards
- Dapagliflozin Impurity 201 (CAS CATO-C4X-1138201)
- 1-(4-Chlorobenzenesulfonyl)-3-[1-({2-fluoro-[1,1'-biphenyl]-4-yl}oxy)ethyl]-1H-pyrazole (CAS 477711-04-9)
- Afatinib Impurity 68 (CAS CATO-C4X-100668)
- 3-(3-((2-Chloro-6-fluorobenzyl)oxy)phenyl)-1-tosyl-1H-pyrazole (CAS 477712-64-4)
- (1-Benzyl-1h-pyrazol-5-yl)methanamine hydrochloride (CAS 2680615-11-4)
- 2-Thioxo-2,3,6,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidin-4(5H)-one (CAS 16372-06-8)
- tert-Butyl (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine-1-carboxylate (CAS 159991-07-8)
- Methyl 5-(4-chlorophenyl)-3-(chlorosulfonyl)thiophene-2-carboxylate (CAS 1375474-12-6)
- 4-(3-Methoxyphenyl)-6-(4-methylpiperazin-1-yl)-2-phenylpyrimidine-5-carbonitrile (CAS 477853-89-7)
- Ethyl Butyrate-d3 (CAS 113435-99-7)
- 6-Amino-2-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 1513-70-8)
- 2-(3-Amino-2-oxopiperidin-1-yl)-N-methylacetamide (CAS 1342404-23-2)
- 1-Methyl-2,3-dihydropyridine-4(1H)-thione (CAS 116414-44-9)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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