3,4-Dibromo-1-phenethyl-1H-pyrrole-2,5-dione CAS 92751-35-4
| CAS No. | 92751-35-4 |
| Molecular Formula | C12H9Br2NO2 |
| Molecular Weight | 359.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dibromo-1-phenethyl-1H-pyrrole-2,5-dione (CAS 92751-35-4), a certified reference material (molecular formula C12H9Br2NO2, MW 359.01 g/mol) for analytical method development and quality control.
Structurally, 3,4-Dibromo-1-phenethyl-1H-pyrrole-2,5-dione (C12H9Br2NO2) 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 359.01 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 3,4-Dibromo-1-phenethyl-1H-pyrrole-2,5-dione 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 | C12H9Br2NO2 |
| Molecular Weight | 359.01 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 4,5-Dibromo-N-[(pyridin-4-yl)methyl]-1H-pyrrole-2-carboxamide (CAS 861208-06-2)
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Recommended Standards
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- 4-Pentafluoroethyl-3-trifluoromethylbenzonitrile (CAS 1208078-86-7)
- 6-Cyano-trans-3-bromo-3,4-dihydro-2,2-dimethyl-2H-benzo-[b]-pyran-4-ol 65018-89-5 trans-3-Bromo-3,4-dihydro-4-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile (CAS 65018-89-5)
- 2-(3-Amino-4-chloro-1h-pyrazol-1-yl)-N-butylacetamide (CAS 1342236-62-7)
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- 1,2,3,5-Tetramethoxybenzene (CAS 5333-45-9)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
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