1-(2-Bromoethyl)indoline-2,3-dione CAS 4290-78-2
| CAS No. | 4290-78-2 |
| Molecular Formula | C10H8BrNO2 |
| Molecular Weight | 254.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 254.08 g/mol gives 1-(2-Bromoethyl)indoline-2,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(2-Bromoethyl)indoline-2,3-dione (CAS 4290-78-2) is a high-purity analytical reference standard with the molecular formula C10H8BrNO2 and a molecular weight of 254.08 g/mol.
Structurally, 1-(2-Bromoethyl)indoline-2,3-dione (C10H8BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 254.08 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C10H8BrNO2 |
| Molecular Weight | 254.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromoethyl Standards
- 2-(2-Bromoethyl)isoindoline-1,3-dione (CAS 574-98-1)
- 6-(1-Bromoethyl)-7-fluoroquinoline (CAS 1635407-22-5)
- 2-(1-Bromoethyl)-5-(trifluoromethyl)pyridine (CAS 1122705-37-6)
- 5-(2-Bromoethyl)-2-(trifluoromethyl)pyridine (CAS 1189798-52-4)
- 4-(1-Bromoethyl)-2-(trifluoromethyl)pyridine (CAS 2292215-87-1)
- 3-(2-Bromoethyl)-5-methoxy-1H-indole (CAS 18334-96-8)
- 1-(2-Bromoethyl)-2,4-dichlorobenzene (CAS 108649-59-8)
- 4-(1-Bromoethyl)-1,2-dichlorobenzene (CAS 192702-37-7)
Recommended Standards
- [5-(3-bromophenyl)-1,3,4-oxadiazol-2-yl]methanamine (CAS 944906-88-1)
- 1-(3-Amino-5-bromobenzofuran-2-yl)ethanone (CAS 636992-53-5)
- [3-(4-Bromophenyl)isoxazol-5-yl]methanol (CAS 206055-91-6)
- 1-(4-Bromophenyl)pyrrolidine-2,5-dione (CAS 41167-74-2)
- 5-Chloro-2-(chloromethyl)-4-(trifluoromethyl)pyridine (CAS 1393572-44-5)
- ((6-Chloro-1H-benzo[d][1,2,3]triazol-1-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate (CAS 893413-42-8)
- N-(6-aminopyridin-3-yl)-5-chloro-2-methylbenzene-1-sulfonamide (CAS 1183543-86-3)
- 2-Chloro-4-phenyl-6-(tribromomethyl)-1,3,5-triazine (CAS 648432-35-3)
- 1-(2,6-Dihydroxyphenyl)-9-phenylnonan-1-one (CAS 63335-23-9)
- 2-Amino-2-(2,3-dimethoxyphenyl)acetamide (CAS 1218057-47-6)
- 4-Bromo-4-morpholinomethyl benzophenone (CAS 898769-92-1)
- Ethyl 2-(1-(pyridin-4-yl)piperidin-4-yl)acetate (CAS 168077-30-3)
- trans-Tetrahydrofuran-3,4-dicarboxylic acid (CAS 1903836-65-6)
- Compstatin control peptide (CAS 301544-78-5)
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