4’-Bromo-2-hydroxyacetophenone CAS 3343-45-1
| CAS No. | 3343-45-1 |
| Molecular Formula | C8H7BrO2 |
| Molecular Weight | 215.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4’-Bromo-2-hydroxyacetophenone (C8H7BrO2) contains a carboxylic acid group, 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 215.04 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4’-Bromo-2-hydroxyacetophenone (CAS 3343-45-1), a certified reference material (molecular formula C8H7BrO2, MW 215.04 g/mol) for analytical method development and quality control.
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 manufactures 4’-Bromo-2-hydroxyacetophenone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7BrO2 |
| Molecular Weight | 215.04 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; 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.) | 1957 |
| Halogen Content | Br-containing |
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Recommended Standards
- 4’-Bromo-2’-hydroxyacetophenone (CAS 30186-18-6)
- 4’-Bromo-3’-hydroxyacetophenone (CAS 73898-22-3)
- 4,6-Dichloro-2-(furan-3-yl)pyrimidine (CAS 339366-65-3)
- 4-bromo-2-(difluoromethyl)-1-methyl-imidazole (CAS 2248358-20-3)
- 5-Chloro-2-fluorobenzamide (CAS 261762-57-6)
- {[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]thio}acetic acid (CAS 1006483-08-4)
- 4-Phenylhexan-3-one (CAS 6957-17-1)
- (1-(Pent-4-en-1-yl)-1H-pyrazol-4-yl)methanamine (CAS 1344073-35-3)
- (1-Isopropyl-3,5-dimethyl-1h-pyrazol-4-yl)methanol (CAS 1007542-28-0)
- CAS 97867-30-6 (CAS 97867-30-6)
- 2-Oxa-7-azaspiro[4.5]decane (CAS 176-74-9)
- 3-Ethynyl-5-fluorobenzonitrile (CAS 872122-56-0)
- Hydrogen chloride – methanol solution (CAS 132228-87-6)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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