6-bromo-3,4-dihydro-1H-2-benzopyran-4-one CAS 676134-68-2
| CAS No. | 676134-68-2 |
| Molecular Formula | C9H13BrO2 |
| Molecular Weight | 233.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-bromo-3,4-dihydro-1H-2-benzopyran-4-one (CAS 676134-68-2), a certified reference material (molecular formula C9H13BrO2, MW 233.10 g/mol) for analytical method development and quality control.
The molecular framework of 6-bromo-3,4-dihydro-1H-2-benzopyran-4-one (C9H13BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H13BrO2 |
| Molecular Weight | 233.10 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related bromo Standards
- 2-Bromo-7-vinylnaphthalene (CAS 1219691-16-3)
- 2-Bromo-3-(cyclohexyloxy)acrylaldehyde (CAS 1253298-70-2)
- 5-bromo-4-methyl-1,3-dihydro-2-benzofuran-1-one (CAS 1255206-67-7)
- Ethyl 4-Bromo-3-cyclohexenecarboxylate (CAS 1365272-96-3)
- 5-bromo-3-methyl-3H-isobenzofuran-1-one (CAS 1374574-45-4)
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- 7-bromo-3,4-dihydro-1H-2-benzopyran-4-one (CAS 168759-64-6)
- 3-Bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one (CAS 1889-99-2)
Recommended Standards
- 5-Bromoacenaphthene (CAS 2051-98-1)
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- methyl 5-bromobicyclo[3.1.1]heptane-1-carboxylate (CAS 91239-76-8)
- 5-Fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-trityl-1H-pyrazolo[3,4-b]pyridine (CAS 1383446-11-4)
- 5-Bromo-2-chloro-4-fluorophenyl acetate (CAS 148254-36-8)
- (2E)-4,4,4-Trifluoro-3-oxo-2-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}butanoic acid (CAS 478066-87-4)
- (R)-Methyl 2-methyl-5-oxopyrrolidine-1-carboxylate (CAS 247233-47-2)
- N-[3,5-Bis(trifluoromethyl)phenyl]-N'-[(1S,2S)-2-[(11bR)-3,5-dihydro-4H-dinaphth[2,1-c:1',2'-e]azepin-4-yl]-1,2-diphenylethyl]thiourea (CAS 1069114-12-0)
- 2-(Pentyl(5-(piperidin-1-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)amino)ethanol (CAS 100557-04-8)
- Methyl 4-chloro-3-hydroxybutanoate (CAS 10488-68-3)
- Methyl 3-(((benzyloxy)carbonyl)amino)-2,2-dimethylpropanoate (CAS 114343-29-2)
- 8-Bromo-7-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 1784607-28-8)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com