Ethyl 2-(2-bromoacetyl)benzoate CAS 133993-34-7
| CAS No. | 133993-34-7 |
| Molecular Formula | C11H11BrO3 |
| Molecular Weight | 271.11 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.
CATO supplies Ethyl 2-(2-bromoacetyl)benzoate (CAS 133993-34-7), a certified reference material (molecular formula C11H11BrO3, MW 271.11 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Ethyl 2-(2-bromoacetyl)benzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H11BrO3 |
| Molecular Weight | 271.11 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
Related Ethyl Standards
- 7-Bromoacetyl-3,4-dihydro-1,5-benzodioxepin (CAS 35970-34-4)
- Methyl 2-(4-(2-bromoacetyl)phenyl)acetate (CAS 84325-98-4)
- 5-(2-Bromoacetyl)-2-fluoro-4-methoxybenzonitrile (CAS 2384456-51-1)
- 5-(2-Bromoacetyl)-N,2-dimethylbenzamide (CAS 1421923-02-5)
- 6-(2-Bromoacetyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 58819-97-9)
- 6-(2-Bromoacetyl)-3-methylbenzo[d]oxazol-2(3H)-one (CAS 79851-85-7)
- 5-(2-Bromoacetyl)-2-chloro-4-methylbenzonitrile (CAS 1375302-43-4)
- 2-(Bromoacetyl)-3-methylbenzo[b]thiophene (CAS 118337-33-0)
Recommended Standards
- 1-(4-Bromophenoxymethyl)-cyclopropanecarboxylic acid (CAS 1311265-18-5)
- 3-Bromo-4-(cyclopropylmethoxy)benzoic acid (CAS 1343994-39-7)
- 4-(4-Bromo-3-methylphenyl)-4-oxobutanoic acid (CAS 1310278-44-4)
- Br-PEG3-CH2COOH (CAS 1346502-15-5)
- 1,1,1-trifluoro-3-methoxybutan-2-ol (CAS 1861967-76-1)
- 2-Bromo-n-cyclopentyl-n,4-dimethylbenzenesulfonamide (CAS 1089640-88-9)
- 5-((1,4-Diazepan-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione (CAS 1428233-51-5)
- WH-4-023 (CAS 837422-57-8)
- Leuprorelin Impurity 48 (CAS CATO-C4X-182248)
- 2-({4-[(2,4-difluorophenoxy)methyl]-2-nitrophenyl}sulfanyl)-1,3-benzothiazole (CAS 477869-54-8)
- 3-(2-Chlorophenyl)-cyclohexanone (CAS 141632-22-6)
- 4-(tert-Butyl)-3-iodobenzoic acid (CAS 91131-72-5)
- 2-Aminophenol hemisulfate (CAS 67845-79-8)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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