6-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine CAS 79440-34-9
| CAS No. | 79440-34-9 |
| Molecular Formula | C9H9BrO2 |
| Molecular Weight | 229.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine (CAS 79440-34-9) is a high-purity analytical reference standard with the molecular formula C9H9BrO2 and a molecular weight of 229.07 g/mol.
6-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine (C9H9BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C9H9BrO2 |
| Molecular Weight | 229.07 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
Related Bromomethyl Standards
- (3R)-3-(Bromomethyl)-2,3-dihydro-1,4-benzodioxine (CAS 1142953-55-6)
- 2-[3-(Bromomethyl)phenyl]acetic Acid (CAS 118647-53-3)
- 2-(Bromomethyl)phenylacetic Acid (CAS 13737-35-4)
- (S)-2-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1618132-41-4)
- 2-(Bromomethyl)phenyl Acetate (CAS 704-65-4)
- 2-Bromomethyl-2,3-dihydrobenzo[1,4]dioxine (CAS 2164-34-3)
- 3-(Bromomethyl)-5-methylbenzoic acid (CAS 550367-75-4)
- 3-(Bromomethyl)phenyl Acetate (CAS 49617-80-3)
Recommended Standards
- 5-Bromo-N-ethylpyridine-2-carboxamide, 97% (CAS 845305-88-6)
- 6’-Bromo-2’-methoxyacetophenone (CAS 380225-68-3)
- 5-Bromo-N,N-dimethylpyridine-2-carboxamide, 97% (CAS 845305-86-4)
- 6-Bromo-2,3-dimethylbenzoic acid (CAS 5613-29-6)
- 2-Fluoro-5-nitrophenylacetic Acid (CAS 195609-18-8)
- Tert-butyl 4-amino-1-oxa-7-azaspiro[4.4]Nonane-7-carboxylate (CAS 1822455-52-6)
- N-(4,6-Dichloropyrimidin-2-yl)acetamide (CAS 58910-75-1)
- (E)-3-(dimethylamino)-1-(5-fluoropyridin-3-yl)prop-2-en-1-one (CAS 1373392-87-0)
- 4,5-Dinitrocatechol (CAS 77400-30-7)
- 3-Oxo-2-(thiophen-2-ylmethyl)isoindolin-1-yl tert-butylcarbamate (CAS 866008-23-3)
- 4-Methyl-3-(trifluoromethyl)phenol (CAS 1017778-16-3)
- (R)-6-bromo-1,2,3,4-tetrahydronaphthalen-1-ol (CAS 1568168-36-4)
- 4-Bromo-6-chloro-2-(difluoromethyl)-3-fluoropyridine (CAS 1804724-69-3)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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