| CAS No. | 31949-21-0 |
| Molecular Formula | C9H15BrO2 |
| Molecular Weight | 235.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-BROMO-1-(2-METHOXYPHENYL)ETHAN-1-ONE 2-BROMO-1-(2-METHOXYPHENYL)ETHANONE 2-Bromo-2'-methoxyacetophenone 2-METHOXYPHENACYL BROMIDE 31949-21-0 ALPHA-BROMO-O-METHOXYACETOPHENONE AS05121 EMOLECULES 477657.
2-BROMO-1-(2-METHOXYPHENYL)ETHAN-1-ONE 2-BROMO-1-(2-METHOXYPHENYL)ETHANONE 2-Bromo-2'-methoxyacetophenone 2-METHOXYPHENACYL BROMIDE 31949-21-0 ALPHA-BROMO-O-METHOXYACETOPHENONE AS05121 EMOLECULES 477657 (CAS 31949-21-0), molecular formula C9H15BrO2 and molecular weight 235.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H15BrO2, 2-BROMO-1-(2-METHOXYPHENYL)ETHAN-1-ONE 2-BROMO-1-(2-METHOXYPHENYL)ETHANONE 2-Bromo-2'-methoxyacetophenone 2-METHOXYPHENACYL BROMIDE 31949-21-0 ALPHA-BROMO-O-METHOXYACETOPHENONE AS05121 EMOLECULES 477657 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 235.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
| Molecular Formula | C9H15BrO2 |
| Molecular Weight | 235.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |