2,7-Dibromodibenzo[b,e][1,4]dioxin CAS 39073-07-9
| CAS No. | 39073-07-9 |
| Molecular Formula | C12H6Br2O2 |
| Molecular Weight | 341.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2,7-Dibromodibenzo[b,e][1,4]dioxin is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 341.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2,7-Dibromodibenzo[b,e][1,4]dioxin (CAS 39073-07-9), molecular formula C12H6Br2O2 and molecular weight 341.98 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,7-Dibromodibenzo[b,e][1,4]dioxin 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.
Physical & Chemical Properties
| Molecular Formula | C12H6Br2O2 |
| Molecular Weight | 341.98 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
Related Dibromodibenzo Standards
- 1,6-Dibromodibenzo[1,4]Dioxin (CAS 91371-14-1)
- 2,4-Dibromodibenzo[b,d]thiophene (CAS 186822-42-4)
- 2,7-Dibromodibenzo[b,d]thiophene (CAS 67001-77-8)
- 3,7-Dibromodibenzo[b,d]thiophene (CAS 83834-10-0)
- 2,8-Dibromodibenzo[b,d]furan (CAS 10016-52-1)
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- 1,4-Dibromodibenzo[b,d]furan (CAS 617707-25-2)
- 1,6-Dibromodibenzo[b,d]furan (CAS 617707-26-3)
Recommended Standards
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