2-Bromo-N-(4-chloro-2-methylphenyl)butanamide CAS 99866-27-0
| CAS No. | 99866-27-0 |
| Molecular Formula | C11H13BrClNO |
| Molecular Weight | 290.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-N-(4-chloro-2-methylphenyl)butanamide (CAS 99866-27-0) is a high-purity analytical reference standard with the molecular formula C11H13BrClNO and a molecular weight of 290.58 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, 2-Bromo-N-(4-chloro-2-methylphenyl)butanamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C11H13BrClNO |
| Molecular Weight | 290.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- N-(4-bromo-3-methylphenyl)-4-chlorobutanamide (CAS 1016517-56-8)
- 2-Bromo-N-(5-chloro-2-methylphenyl)butanamide (CAS 1017663-90-9)
- N-(2-(4-bromo-2-chlorophenoxy)ethyl)cyclopropanamine (CAS 1038305-52-0)
- N-(4-Bromo-2-chlorophenyl)tetrahydro-2H-pyran-4-amine (CAS 1056465-04-3)
- 2-Bromo-N-(4-chlorophenethyl)propanamide (CAS 1119450-46-2)
- Butyl 5-bromo-2-chlorobenzamide (CAS 1184623-42-4)
- N-(3-Bromo-2,4,6-trimethylphenyl)-2-chloroacetamide (CAS 119518-61-5)
- 3-(2-Bromo-4-chloro-3,5-dimethylphenoxy)azetidine (CAS 1220027-00-8)
Recommended Standards
- 2-bromo-N-(2-chlorophenyl)-3-methylbutanamide (CAS 391220-24-9)
- 4-[(Bromo-2-chlorophenyl)methyl]morpholine (CAS 494773-04-5)
- 2-Bromo-N-(2-chlorobenzyl)butanamide (CAS 28046-14-2)
- 5-Bromo-2-chloro-N,N-diethylbenzamide (CAS 892019-21-5)
- 4-(4-Chloro-2-methylphenoxy-d3)butyric Acid (CAS 1219803-42-5)
- 1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid hydrobromide (CAS 190961-50-3)
- tert-Butyl (2S,4S)-4-(hydroxymethyl)-2-methylpiperidine-1-carboxylate (CAS 1808584-62-4)
- Methyl 3-(2,2-dimethyl-3-oxopiperazin-1-yl)propanoate (CAS 1344021-94-8)
- Difelikefalin Impurity 81 (CAS CATO-C4X-304181)
- rel-3-(tert-Butyl) 4-methyl (2S,4R)-2-hydroxythiazolidine-3,4-dicarboxylate (CAS 1140832-56-9)
- 5-Methyl-2-(quinolin-3-yl)thiazole (CAS 810690-11-0)
- N-(sec-butyl)-N-(5-iodothiophene-3-carbonyl)glycine (CAS 1521670-46-1)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-((tetrahydrofuran-2-yl)methyl)acetamide (CAS 383148-43-4)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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