1-(4-Bromo-3-methylphenyl)pyrrolidine-2,5-dione CAS 329079-34-7
| CAS No. | 329079-34-7 |
| Molecular Formula | C11H10BrNO2 |
| Molecular Weight | 268.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(4-Bromo-3-methylphenyl)pyrrolidine-2,5-dione (CAS 329079-34-7) is a high-purity analytical reference standard with the molecular formula C11H10BrNO2 and a molecular weight of 268.11 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1-(4-Bromo-3-methylphenyl)pyrrolidine-2,5-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H10BrNO2 |
| Molecular Weight | 268.11 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 6-Bromo-N-ethylimidazo[1,2-a]pyridine-3-carboxamide (CAS 1004550-10-0)
- 3-(4-Bromo-3-indolyl)propanoic Acid (CAS 1018612-18-4)
- 4-(4-Bromo-2-formylphenoxy)butanenitrile (CAS 1039828-17-5)
- 7-Bromo-5-isopropylindoline-2,3-dione (CAS 1044659-62-2)
- Ethyl 5-bromo-1H-indole-7-carboxylate (CAS 1065181-58-9)
- Methyl 5-bromo-1-methyl-1H-indole-7-carboxylate (CAS 1090903-58-4)
- Methyl 6-bromo-1-methyl-1H-indole-4-carboxylate (CAS 1090903-89-1)
- 6-Bromo-2-methoxy-3-(4-methyl-1H-imidazol-1-yl)pyridine (CAS 1123194-98-8)
Recommended Standards
- 1-(4-(Bromomethyl)phenyl)pyrrolidine-2,5-dione (CAS 309733-25-3)
- 1-Bromo-6,7-dimethoxyisoquinoline (CAS 949139-74-6)
- 1-(3-Bromopropyl)indoline-2,3-dione (CAS 320741-36-4)
- 2-((6-Bromoquinazolin-4-yl)amino)ethan-1-ol (CAS 99057-99-5)
- ethyl 5-methyl-1H-indazole-3-carboxylate (CAS 1908-01-6)
- 2-(Difluoromethyl)-5-iodo-6-nitropyridine-3-carbonyl chloride (CAS 1805512-57-5)
- Methyl 2-(4-amino-3-iodophenyl)acetate (CAS 374933-81-0)
- (R,R)(S,S)-Benidipine Hydrochloride (CAS 91599-74-5)
- 3-(5-Methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)propanoic acid (CAS 6214-59-1)
- 2-Chloro-5-(3-methoxycarbonylphenyl)benzoic acid (CAS 1262009-62-0)
- 7-Hydroxy-1,2,3,4-tetrahydronaphthalene-2-carboxylic acid (CAS 31846-36-3)
- 3-Iodo-1H-indazole-4-carbonitrile (CAS 944898-93-5)
- 2-Propen-1-aminium, N,N-dimethyl-N-2-propen-1-yl-, chloride , polymer with N-[(dimethylamino)methyl]-2-propenamide (CAS 73597-22-5)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
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