1-Bromo-3,4-dihydro-1H-2-benzopyran CAS 50683-32-4
| CAS No. | 50683-32-4 |
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Bromo-3,4-dihydro-1H-2-benzopyran meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-Bromo-3,4-dihydro-1H-2-benzopyran (CAS 50683-32-4), molecular formula C9H9BrO and molecular weight 213.07 g/mol, is a CATO reference standard with documented purity and traceability.
1-Bromo-3,4-dihydro-1H-2-benzopyran (C9H9BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.) | 1971 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
- 1-Bromo-2-cyclopropoxybenzene (CAS 38380-86-8)
- 1-Bromo-3-phenylpropan-2-one (CAS 20772-12-7)
- 1-Bromo-2-(2-propen-1-yloxy)-benzene (CAS 60333-75-7)
- 1-Bromo-4-(2-methoxy-vinyl)-benzene (CAS 59436-09-8)
- Ethyl 7-oxa-2-azabicyclo[4.1.0]heptane-2-carboxylate (CAS 177980-28-8)
- 4-Methyl-8-phenoxy-1-[4-(propan-2-yl)phenyl]-1H,2H,3H-pyrrolo[3,2-c]quinoline (CAS 861210-25-5)
- 1-(tert-Butyl) 4-methyl 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1,4-dicarboxylate (CAS 2377607-84-4)
- 1-(7-Nitro-9H-fluoren-2-yl)ethanone (CAS 34172-49-1)
- Ethyl 5-Chlorothiophene-2-carboxylate (CAS 5751-82-6)
- 2,4-Difluoro-6-nitrobenzoyl chloride (CAS 1803730-41-7)
- N-(1-Benzyl-3-cyano-4,5-dimethyl-1H-pyrrol-2-yl)-2-methylpropanamide (CAS 478032-99-4)
- (2-Cyano-6-methoxypyridin-4-yl)boronic acid (CAS 2225170-51-2)
- (5-Chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methanol (CAS 1934391-22-6)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
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