(E)-4-(3-(3-chlorophenyl)acryloyl)phenyl 4-bromobenzenesulfonate CAS 298216-11-2
| CAS No. | 298216-11-2 |
| Molecular Formula | C21H14BrClO4S |
| Molecular Weight | 477.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-4-(3-(3-chlorophenyl)acryloyl)phenyl 4-bromobenzenesulfonate.
CATO supplies (E)-4-(3-(3-chlorophenyl)acryloyl)phenyl 4-bromobenzenesulfonate (CAS 298216-11-2), a certified reference material (molecular formula C21H14BrClO4S, MW 477.76 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H14BrClO4S, (E)-4-(3-(3-chlorophenyl)acryloyl)phenyl 4-bromobenzenesulfonate contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 477.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H14BrClO4S |
| Molecular Weight | 477.76 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related E Standards
- 3-((4-Chlorophenyl)sulfonyl)-2-imino-1-(pyridin-3-ylmethyl)-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 577764-47-7)
- 3-{4-[(4-chlorophenyl)sulfanyl]-3-nitrophenyl}-N-[2-(1H-indol-3-yl)ethyl]prop-2-enamide (CAS 946386-43-2)
- 2-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N'-(3-(furan-2-yl)allylidene)acetohydrazide (CAS 307975-51-5)
- 4-(3-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acrylamido)benzamide (CAS 477331-52-5)
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- 2-((4-(4-Chlorophenyl)-5-((p-tolylamino)methyl)-4H-1,2,4-triazol-3-yl)thio)-N-(m-tolyl)acetamide (CAS 335217-95-3)
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Recommended Standards
- 3,4,5-Tris(octyloxy)aniline (CAS 151237-03-5)
- (2,4-dichlorophenyl)methyl N-[1-(4-chlorobenzenesulfonyl)piperidin-4-yl]carbamate 478047-72-2 4R-1161 (CAS 478047-72-2)
- S-Benzyl-N-Stearoyl-L-cysteine (CAS 40379-70-2)
- Isoxafenacil (CAS 1949837-17-5)
- (R)-1-(4-Morpholinophenyl)ethan-1-ol (CAS 1225049-48-8)
- 4-Amino-6-methoxypyridin-2(1H)-one (CAS 1356109-12-0)
- 4-(4-(o-Tolyl)-1H-pyrazol-3-yl)-4H-1,2,4-triazole (CAS 62537-99-9)
- 2-(6-Nitropyridin-3-yl)acetonitrile (CAS 1936247-74-3)
- 5,6-Diamino-3-methyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 39008-28-1)
- 3β,7α,12α-Trihydroxy-5β-cholanic Acid Methyl Ester (CAS 28050-54-6)
- 5-Oxo-1-(2-phenoxyethyl)pyrrolidine-3-carboxylic acid (CAS 361985-22-0)
- Ciprocinonide (CAS 58524-83-7)
- Trimethyl(2-((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)methoxy)ethyl)silane (CAS 2377611-96-4)
- Semaglutide impurity 26 (CAS CATO-C4X-222626)
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