Methyl 1-(2-bromo-4-fluorophenyl)-5-(3,4-dimethylphenyl)-2-methyl-1H-pyrrole-3-carboxylate CAS 881041-41-4
| CAS No. | 881041-41-4 |
| Molecular Formula | C21H19BrFNO2 |
| Molecular Weight | 416.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, Methyl 1-(2-bromo-4-fluorophenyl)-5-(3,4-dimethylphenyl)-2-methyl-1H-pyrrole-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 416.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Methyl 1-(2-bromo-4-fluorophenyl)-5-(3,4-dimethylphenyl)-2-methyl-1H-pyrrole-3-carboxylate (CAS 881041-41-4), molecular formula C21H19BrFNO2 and molecular weight 416.28 g/mol, is a CATO reference standard with documented purity and traceability.
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), Methyl 1-(2-bromo-4-fluorophenyl)-5-(3,4-dimethylphenyl)-2-methyl-1H-pyrrole-3-carboxylate 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 | C21H19BrFNO2 |
| Molecular Weight | 416.28 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
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