1-(2-Bromobenzyl)-1H-pyrrole-2,5-dione CAS 140480-93-9
| CAS No. | 140480-93-9 |
| Molecular Formula | C11H8BrNO2 |
| Molecular Weight | 266.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 266.09 g/mol gives 1-(2-Bromobenzyl)-1H-pyrrole-2,5-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-(2-Bromobenzyl)-1H-pyrrole-2,5-dione (CAS 140480-93-9), a certified reference material (molecular formula C11H8BrNO2, MW 266.09 g/mol) for analytical method development and quality control.
Structurally, 1-(2-Bromobenzyl)-1H-pyrrole-2,5-dione (C11H8BrNO2) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 266.09 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H8BrNO2 |
| Molecular Weight | 266.09 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromobenzyl Standards
- 1-(3-Bromobenzyl)-1H-pyrrole-2,5-dione (CAS 140480-94-0)
- 2-(4-Bromobenzyl)-4,5-dimethyloxazole (CAS 1368915-26-7)
- 2-(4-Bromobenzyl)-3-oxopentanenitrile (CAS 1401728-61-7)
- 1-(2-Bromobenzyl)-5-methyl-1h-pyrazol-3-amine (CAS 1035223-67-6)
- 1-(2-Bromobenzyl)-4-methyl-1H-pyrazol-5-amine (CAS 1152524-44-1)
- 1-(3-Bromobenzyl)-4-methyl-1H-pyrazol-5-amine (CAS 1152526-82-3)
- 1-(4-Bromobenzyl)-4-methyl-1H-pyrazol-5-amine (CAS 1152526-94-7)
- n-(2-Bromobenzyl)-1-methyl-1h-pyrazol-4-amine (CAS 1153290-79-9)
Recommended Standards
- Methyl 4-bromoquinoline-2-carboxylate (CAS 139896-91-6)
- 2-Bromoquinolin-8-yl acetate (CAS 139399-65-8)
- 1-[(4-bromophenyl)methyl]-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 140480-95-1)
- Methyl 5-bromoisoquinoline-4-carboxylate (CAS 1384251-83-5)
- [2-(2-Methoxyethoxy)-6-methylpyridin-3-yl]boronic acid (CAS 2377611-89-5)
- Ethyl 2,2-dimethyl-3-nitropropanoate (CAS 76173-44-9)
- 4-(1,3-Dioxolan-2-yl)-4-methylheptan-1-amine (CAS 1354963-75-9)
- N-[1-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)cyclohexyl]-3-phenylpropanamide (CAS 1396765-90-4)
- 4-Sulfamoylbenzimidamide (CAS 54951-45-0)
- 1-(2-Bromoethyl)-1,2,4-triazole (CAS 783262-04-4)
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