4-Bromo-1'-methyl-3-phenyl-5H-spiro[furan-2,3'-indolin]-2'-one CAS 882041-53-4
| CAS No. | 882041-53-4 |
| Molecular Formula | C18H14BrNO2 |
| Molecular Weight | 356.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-1'-methyl-3-phenyl-5H-spiro[furan-2,3'-indolin]-2'-one (CAS 882041-53-4), molecular formula C18H14BrNO2 and molecular weight 356.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H14BrNO2, 4-Bromo-1'-methyl-3-phenyl-5H-spiro[furan-2,3'-indolin]-2'-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.21 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.
As a certified reference material (CRM), 4-Bromo-1'-methyl-3-phenyl-5H-spiro[furan-2,3'-indolin]-2'-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 | C18H14BrNO2 |
| Molecular Weight | 356.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-(2-Chlorophenyl)-5-[(E)-2-[(4-chlorophenyl)amino]ethenyl]-1,2-oxazole-4-carbonitrile (CAS 320424-88-2)
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- 3-(2-Chlorophenyl)-5-[(E)-2-[(3-chlorophenyl)amino]ethenyl]-1,2-oxazole-4-carbonitrile (CAS 320415-79-0)
- 5-(2-Anilinovinyl)-3-(2,6-dichlorophenyl)-4-isoxazolecarbonitrile (CAS 338394-19-7)
- 4-(2-Bromophenoxy)tetrahydro-2H-pyran (CAS 494773-65-8)
- N,N-Diethyl-4-(oxazolo[4,5-b]pyridin-2-yl)aniline (CAS 1078163-97-9)
- 2-(Bromomethyl)-6-chlorobenzonitrile (CAS 863676-23-7)
- Esomeprazole Impurity 78 (CAS 49559-83-3)
- 3-Indoxylphosphate,p-toluidinesalt (CAS 31699-61-3)
- Ambroxol Impurity 35 (CAS CATO-C4X-108535)
- 1-(4-(2-Bromoacetyl)-1-methyl-1H-pyrrol-2-yl)-2,2,2-trichloroethan-1-one (CAS 303997-66-2)
- 2-Amino-2-oxoethyl 5-methylpyrazine-2-carboxylate (CAS 452944-02-4)
- 3-Hydroxypropyl hydrogen (3,4-difluorophenyl)boronate (CAS 684648-49-5)
- Peptide 431 (CAS CATO-CPTD788431)
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