7-Bromo-2-methyl-4H-chromen-4-one CAS 30779-72-7
| CAS No. | 30779-72-7 |
| Molecular Formula | C10H7BrO2 |
| Molecular Weight | 239.07 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.
7-Bromo-2-methyl-4H-chromen-4-one (CAS 30779-72-7), molecular formula C10H7BrO2 and molecular weight 239.07 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7-Bromo-2-methyl-4H-chromen-4-one (C10H7BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 7-Bromo-2-methyl-4H-chromen-4-one 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 | C10H7BrO2 |
| Molecular Weight | 239.07 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-7-methyl-1h-indazole-3-carbaldehyde (CAS 1000340-73-7)
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- 1-(4-Bromo-1H-pyrrolo[2,3-b]pyridin-1-yl)ethanone (CAS 1000340-84-0)
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Recommended Standards
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- 7-Bromo-2-methoxyquinoxaline (CAS 212327-10-1)
- 7-Bromo-3,4-dihydro-5-oxa-1,2a-diazaacenaphthylene (CAS 2088850-57-9)
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- 2-(4-Methoxyphenyl)-N-((5-methylthiophen-2-yl)methyl)ethan-1-amine (CAS 874123-63-4)
- 3-methoxy-4-oxopyran-2-carboxylic acid (CAS 102170-50-3)
- 3-Cyclohexylazetidine Hydrochloride (CAS 7606-38-4)
- (1R)-2'-(Dicyclohexylphosphanyl)-N,N-dimethyl-[1,1'-binaphthalen]-2-amine (CAS 255882-15-6)
- 1,14-Dibromotetradecane (CAS 37688-96-3)
- Luzopeptin A (CAS 75580-37-9)
- 5-Iodo-2-(methylthio)pyrimidin-4(3H)-one (CAS 76510-61-7)
- 2,4-Dichloro-6-(difluoromethoxy)benzylamine (CAS 1804883-64-4)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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