1-Bromodibenzo[b,e][1,4]dioxine CAS 105908-71-2
| CAS No. | 105908-71-2 |
| Molecular Formula | C12H7BrO2 |
| Molecular Weight | 263.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-Bromodibenzo[b,e][1,4]dioxine (CAS 105908-71-2) is a high-purity analytical reference standard with the molecular formula C12H7BrO2 and a molecular weight of 263.09 g/mol.
Based on its molecular formula C12H7BrO2, 1-Bromodibenzo[b,e][1,4]dioxine contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C12H7BrO2 |
| Molecular Weight | 263.09 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromodibenzo Standards
- 2-Bromodibenzo[b,e][1,4]dioxine (CAS 105906-36-3)
- 1-Bromodibenzo[b,d]furan-2-ol (CAS 91267-95-7)
- 1-Bromodibenzo[b,d]thiophene (CAS 65642-94-6)
- 1-Bromodibenzo[b,d]furan-2-amine (CAS 667937-51-1)
- 1-Bromodibenzo[b,d]furan-4-amine (CAS 50548-39-5)
- 2-Bromodibenzo[b,d]furan-3-amine (CAS 83660-06-4)
- 8-Bromodibenzo[b,d]furan-2-carbonitrile (CAS 1442648-14-7)
- 2-Bromodibenzo[b,d]furan-4-carbonitrile (CAS 186821-87-4)
Recommended Standards
- 2-(3-Bromophenyl)pyrimidine-5-carbaldehyde (CAS 1086393-72-7)
- 3-(5-Bromo-1h-indol-3-yl)-3-oxopropanenitrile (CAS 1020722-10-4)
- 2-(5-(Bromomethyl)isoxazol-3-yl)benzonitrile (CAS 1158735-29-5)
- tert-Butyl (5-bromooxazol-2-yl)carbamate (CAS 1018833-69-6)
- 1-(4-Chloropent-4-en-1-yl)-4-fluorobenzene (CAS 1143461-60-2)
- 2-(4-Chlorobenzoyl)-6-methylpyridine (CAS 1187169-91-0)
- 9-Benzyl-6-phenyl-9H-purine (CAS 83135-02-8)
- Valsartan Impurity 47 (CAS 783369-52-8)
- 1-Ethyl-N-(4H-1,2,4-triazol-4-yl)-1H-benzo[d]imidazol-2-amine (CAS 727687-85-6)
- 3-Bromo-5-(tosylmethyl)pyridine (CAS 866021-35-4)
- 2-((5-(Furan-2-yl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 498550-72-4)
- 1-(3-Cyclopentylpropanoyl)piperazinehydrochloride (CAS 1185293-00-8)
- Ethyl 2-(pyridin-4-yl)cyclopropane-1-carboxylate (CAS 4903-93-9)
- Semaglutide impurity 29 (CAS 1188328-22-4)
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