4-Bromo-N-(tert-butyl)-3-fluorobenzamide CAS 303084-63-1
| CAS No. | 303084-63-1 |
| Molecular Formula | C11H13BrFNO |
| Molecular Weight | 274.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H13BrFNO, 4-Bromo-N-(tert-butyl)-3-fluorobenzamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 274.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Bromo-N-(tert-butyl)-3-fluorobenzamide (CAS 303084-63-1), molecular formula C11H13BrFNO and molecular weight 274.13 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.
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 | C11H13BrFNO |
| Molecular Weight | 274.13 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-(heptafluoropropan-2-yl)benzaldehyde (CAS 875306-42-6)
- 4-Bromo-N,N-diethyl-2-fluorobenzamide (CAS 682778-07-0)
- 4-(5-Bromo-2-fluorobenzyl)morpholine, 97% (CAS 488799-67-3)
- 4-Bromo-N-t-butyl-2-fluorobenzamide (CAS 303084-21-1)
- 2-((5-Methyl-1h-benzo[d]imidazol-2-yl)thio)acetaldehyde (CAS 1342053-68-2)
- 3-Hydrazinylpyrrolidine dihydrochloride (CAS 1305282-81-8)
- Sodium 2-oxocyclohexanecarboxylate (CAS 75265-85-9)
- N-(1,1-Dimethylethyl)bis(2-benzothiazolesulfen)amide (CAS 3741-80-8)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
- 1-(Cyclohex-3-en-1-yl)methanamine (CAS 2555-10-4)
- (8R,9S,10R,11S)-rel-8,9,10,11-Tetrahydrobenz[a]anthracene-8,9,10,11-tetrol (CAS 78185-86-1)
- 6-Fluoro-7-nitroisobenzofuran-1(3H)-one (CAS 1048920-34-8)
- 2-(2-Methylthiazol-5-yl)propanoic acid (CAS 1023814-51-8)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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