N-(4-bromo-2-methylphenyl)-3-methylbut-2-enamide CAS 940735-00-2
| CAS No. | 940735-00-2 |
| Molecular Formula | C12H14BrNO |
| Molecular Weight | 268.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(4-bromo-2-methylphenyl)-3-methylbut-2-enamide (C12H14BrNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
N-(4-bromo-2-methylphenyl)-3-methylbut-2-enamide (CAS 940735-00-2) is a high-purity analytical reference standard with the molecular formula C12H14BrNO and a molecular weight of 268.15 g/mol.
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), N-(4-bromo-2-methylphenyl)-3-methylbut-2-enamide 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 | C12H14BrNO |
| Molecular Weight | 268.15 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related N Standards
- 1-(4-Bromo-3-methylphenyl)piperidin-2-one (CAS 1017029-00-3)
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- 1-(4-Bromo-2-methylphenyl)piperidin-4-one (CAS 1017055-62-7)
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Recommended Standards
- n-(3-Bromobenzyl)pent-4-enamide (CAS 946654-95-1)
- N-(4-bromo-2-methylphenyl)cyclobutanecarboxamide (CAS 903182-80-9)
- N-(2-bromo-4-methylphenyl)cyclobutanecarboxamide (CAS 750623-54-2)
- n-(4-Bromo-3-methylphenyl)-3-methylbut-2-enamide (CAS 203856-43-3)
- 4-(tert-Butoxycarbonyl)-1-(4-chloro-5-methylpyrimidin-2-yl)piperazine-2-carboxylic acid (CAS 1261229-98-4)
- 1H-Pyrrolo[3,2-b]pyridine-2,5(3H,4H)-dione (CAS 1190311-76-2)
- (2,3-Difluorophenyl)methanamine hydrochloride (CAS 1214350-73-8)
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- 2,4,6-Trimethyl-1,3,5-triazinane (CAS 638-14-2)
- (1R,2S)-2-(3-chlorobenzoyl)cyclopentane-1-carboxylic acid (CAS 733740-13-1)
- 4-Fluoro-2-(piperidin-1-ylmethyl)benzenethiol (CAS 1443305-74-5)
- 2-(Methylthio)-1H-imidazole hydroiodide (CAS 6313-69-5)
- rac-3-Hydroxypentadecanoic Acid (CAS 32602-70-3)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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