methyl 2-(4-bromo-2-fluorophenyl)-2-methylpropanoate CAS 749929-35-9
| CAS No. | 749929-35-9 |
| Molecular Formula | C11H12BrFO2 |
| Molecular Weight | 275.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
methyl 2-(4-bromo-2-fluorophenyl)-2-methylpropanoate (CAS 749929-35-9) is a high-purity analytical reference standard with the molecular formula C11H12BrFO2 and a molecular weight of 275.11 g/mol.
Based on its molecular formula C11H12BrFO2, methyl 2-(4-bromo-2-fluorophenyl)-2-methylpropanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 275.11 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).
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 | C11H12BrFO2 |
| Molecular Weight | 275.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F/Br-containing |
Related methyl Standards
- Ethyl 3-(2-bromo-5-fluorophenyl)propanoate (CAS 1057674-00-6)
- Ethyl 3-(4-Bromo-2-fluorophenyl)propanoate (CAS 1057674-14-2)
- 2-Bromo-4-fluoro-beta,beta-dimethylbenzenepropanoic acid (CAS 1198785-51-1)
- 4-(4-bromo-2-fluorophenoxy)oxane (CAS 1239611-29-0)
- 1-(5-Bromo-3-fluoro-2-hydroxyphenyl)-2,2-dimethylpropan-1-one (CAS 1249909-74-7)
- 1-(3-Bromo-5-fluoro-2-hydroxyphenyl)-2,2-dimethylpropan-1-one (CAS 1250012-80-6)
- 1-(5-Bromo-3-fluoro-2-hydroxyphenyl)-3-methylbutan-1-one (CAS 1250318-58-1)
- Ethyl 3-(4-bromo-3-fluorophenyl)propanoate (CAS 1261778-92-0)
Recommended Standards
- Isopropyl 5-bromo-2-fluoro-3-methylbenzoate (CAS 2432849-10-8)
- N-Boc-5-methylindole-2-boronic acid, 97% (CAS 475102-14-8)
- ethyl 2-bromo-3-(4-fluorophenyl)propanoate (CAS 448216-77-1)
- O-(3-Butenyl)-N,N-bis(2-chloroethyl)phosphorodiamidate (CAS 39800-29-8)
- 2-((2-((4-Methoxyphenyl)amino)-2-oxoethyl)sulfonyl)acetic acid (CAS 338953-92-7)
- 2,3,9-Trimethyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 59562-51-5)
- 1,3,4-Triphenylazetidin-2-one (CAS 7477-20-5)
- 2-Benzyl-2H-tetrazole-5-carboxylic acid (CAS 55408-13-4)
- (2R,5S)-1-allyl-2,5-dimethylpiperazine (CAS 155836-78-5)
- 2-Bromo-2-(4-(trifluoromethyl)phenyl)acetic acid (CAS 133486-71-2)
- 6-methyl-1H-indazole-5-carbaldehyde (CAS 1638771-81-9)
- (2-Amino-1-cyclopropylethyl)dimethylamine (CAS 1092301-70-6)
- 4-Chlorobenzyl (3-methoxythiophen-2-yl)carbamate (CAS 477845-97-9)
- D-[Ser]11-Semaglutide (CAS CATO-CPTD788629)
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