6-Bromo-7-methyl-1,4-dioxaspiro[4.4]non-6-ene CAS 70156-97-7
| CAS No. | 70156-97-7 |
| Molecular Formula | C8H11BrO2 |
| Molecular Weight | 219.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Bromo-7-methyl-1,4-dioxaspiro[4.4]non-6-ene (CAS 70156-97-7), molecular formula C8H11BrO2 and molecular weight 219.08 g/mol, is a CATO reference standard with documented purity and traceability.
6-Bromo-7-methyl-1,4-dioxaspiro[4.4]non-6-ene (C8H11BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. 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 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).
As a certified reference material (CRM), 6-Bromo-7-methyl-1,4-dioxaspiro[4.4]non-6-ene 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 | C8H11BrO2 |
| Molecular Weight | 219.08 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.) | 1977 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
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- 4-Bromo-5-tert-butyl-1,2-oxazol-3-amine (CAS 55809-52-4)
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- 3-Hydroxyoxetane-3-carboxamide (CAS 1273577-19-7)
- Galantamine Hydrobromide Racemic (CAS 193146-85-9)
- SODIUM 2-METHYLBENZENESULFONATE (CAS 15046-75-0)
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