3,4-Dibromo-5,5-di-p-tolylfuran-2(5H)-one CAS 57697-62-8
| CAS No. | 57697-62-8 |
| Molecular Formula | C18H14Br2O2 |
| Molecular Weight | 422.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dibromo-5,5-di-p-tolylfuran-2(5H)-one (CAS 57697-62-8), a certified reference material (molecular formula C18H14Br2O2, MW 422.11 g/mol) for analytical method development and quality control.
The molecular framework of 3,4-Dibromo-5,5-di-p-tolylfuran-2(5H)-one (C18H14Br2O2) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 3,4-Dibromo-5,5-di-p-tolylfuran-2(5H)-one 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 | C18H14Br2O2 |
| Molecular Weight | 422.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- (S)-4-((3,6-dibromo-9H-carbazol-9-yl)methyl)-2-methyl-4,5-dihydrooxazole (CAS 2357079-96-8)
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- (3,5-Dibromo-2-hydroxyphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone (CAS 68287-77-4)
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- 3,3-Dibromo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 879132-47-5)
- 5,6-Dibromo-3-((4-fluoro-3-nitrophenyl)amino)-1-methylpyrazin-2(1H)-one (CAS CATO-CIM-105246)
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Recommended Standards
- 5-(4-Bromophenyl)-7-(2,4-dichlorophenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 303060-42-6)
- Methyl 2,2,3,3-tetrafluoro-3-((1,1,1,2,3,3-hexafluoro-3-((1,2,2-trifluorovinyl)oxy)propan-2-yl)oxy)propanoate (CAS 63863-43-4)
- Tert-butyl 5-bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate (CAS 1024677-85-7)
- Tert-butyl 6-bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate (CAS 1218790-27-2)
- tert-Butyl 3-((6-methoxypyrimidin-4-yl)(methyl)amino)piperidine-1-carboxylate (CAS 1404192-12-6)
- (4-methoxy-3-nitrophenyl)methanesulfonyl fluoride (CAS 1251924-42-1)
- 1-(Phenoxymethyl)-1H-benzo[d][1,2,3]triazole (CAS 111198-02-8)
- (1H-indol-3-yl)(morpholino)methanone (CAS 225782-55-8)
- Methyl 6-(furan-2-yl)-2-methylnicotinate (CAS 1184862-92-7)
- 5,6-Dimethyl-4-nitropicolinic acid (CAS 501357-46-6)
- Neticonazole Impurity 9 (CAS 138206-50-5)
- 1-(Isoquinolin-4-yl)-N-methylmethanamine (CAS 157610-82-7)
- 3-(2-Methoxyphenyl)-1-methyl-1,4,7-triazaspiro[4.4]non-3-en-2-one (CAS 1707594-43-1)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
Why CATO?
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