4’-Bromo-2’-methylacetophenone CAS 65095-33-2
| CAS No. | 65095-33-2 |
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 213.07 g/mol gives 4’-Bromo-2’-methylacetophenone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4’-Bromo-2’-methylacetophenone (CAS 65095-33-2), a certified reference material (molecular formula C9H9BrO, MW 213.07 g/mol) for analytical method development and quality control.
Structurally, 4’-Bromo-2’-methylacetophenone (C9H9BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 213.07 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 5-Bromo-2-methyl-2,3-dihydrobenzofuran (CAS 102292-30-8)
- 3-bromo-1,5,6,7-tetrahydro-1,8-naphthyridine (CAS 1023813-80-0)
- 1-(2-Bromo-4-methylphenyl)ethanone (CAS 103286-27-7)
- 1-Bromo-3-cyclopropoxybenzene (CAS 1035690-22-2)
- trans-2-Bromo-1-indanol (CAS 10368-44-2)
- (R)-5-Bromo-2,3-dihydro-1H-inden-1-ol (CAS 1038919-63-9)
- 4-Bromo-2-cyclopropylphenol (CAS 1043871-14-2)
- 1-(6-Bromo-3-pyridyl)cyclopropanamine (CAS 1060811-36-0)
Recommended Standards
- 4’-(Bromomethyl)acetophenone (CAS 51229-51-7)
- 4-Bromo-2,5-dimethylbenzaldehyde (CAS 88111-74-4)
- 4-(Bromomethyl)benzimidamide (CAS 73711-48-5)
- 4-Bromo-2,6-dimethylbenzaldehyde (CAS 5769-33-5)
- N,N-Dimethyl-L-glutamic acid (CAS 6312-54-5)
- 1,1,1-Tris(2-bromoisobutyryloxymethyl)ethane, 97% (CAS 648898-32-2)
- 380430-49-9 4-(Boc-amino)benzeneboronic Acid 4-(Boc-amino)phenylboronic Acid 4-[(tert-Butoxycarbonyl)amino]benzeneboronic Acid 4-[(tert-Butoxycarbonyl)amino]phenylboronic Acid B4335 (CAS 380430-49-9)
- (1R)-2-amino-1-(4-fluorophenyl)ethan-1-ol hydrochloride (CAS 1185198-25-7)
- Ethyl 4-chloro-6-cyanoquinoline-3-carboxylate (CAS 403841-76-9)
- N-((1H-imidazol-2-yl)methyl)-1-(tetrahydrofuran-2-yl)methanamine (CAS 921145-02-0)
- Ethyl 2-(3-cyanooxetan-3-yl)acetate (CAS 1050611-00-1)
- 2-(4-Chlorophenyl)-N-[2-(4-methylbenzenesulfonyl)ethyl]acetamide (CAS 477886-03-6)
- 5-Methyl-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1190317-21-5)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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