6-Bromo-9-methyl-1,4-dioxaspiro[4.4]non-6-ene CAS 208450-52-6
| CAS No. | 208450-52-6 |
| Molecular Formula | C8H11BrO2 |
| Molecular Weight | 219.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-Bromo-9-methyl-1,4-dioxaspiro[4.4]non-6-ene (CAS 208450-52-6), a certified reference material (molecular formula C8H11BrO2, MW 219.08 g/mol) for analytical method development and quality control.
Structurally, 6-Bromo-9-methyl-1,4-dioxaspiro[4.4]non-6-ene (C8H11BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 219.08 g/mol, it falls into the medium-molecular-weight range. 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).
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 | 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.) | 2016 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-bromo-2,3-dihydro-1-benzofuran-3-one (CAS 1020966-78-2)
- 4-Bromo-1-(3-methoxypropyl)-1h-pyrazole (CAS 1183903-41-4)
- 7-bromo-1,3-dihydropyrrolo[2,3-c]pyridin-2-one (CAS 1190318-26-3)
- 7-bromo-1,3-dihydropyrrolo[3,2-b]pyridin-2-one (CAS 1190318-71-8)
- 6-bromo-1H,2H,3H-pyrrolo[3,2-b]pyridin-2-one (CAS 1190319-62-0)
- 6-bromo-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-81-6)
- 8-Bromo-1,4-dioxaspiro[4.5]dec-7-ene (CAS 1190757-88-0)
- 2-Bromo-5,5-dimethyl-cyclohexane-1,3-dione (CAS 1195-91-1)
Recommended Standards
- 6-Bromo-7-methyl-1,4-dioxaspiro[4.4]non-6-ene (CAS 70156-97-7)
- 6-bromospiro[3.3]heptane-2-carboxylic acid (CAS 28114-88-7)
- 5-bromo-1H,2H,3H-pyrrolo[3,2-b]pyridin-2-one (CAS 887571-01-9)
- 7-Bromo-1,4-dioxaspiro[4.5]dec-7-ene (CAS 81036-84-2)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-chloro-3-fluorobenzoic acid (CAS 2243504-29-0)
- 2-(3-(P-tolyl)-1,2,4-oxadiazol-5-yl)ethan-1-amine (CAS 915922-82-6)
- 2-Ethyl-5-hydroxybenzonitrile (CAS 1243287-70-8)
- D-ribo C20-Phytosphingosine (CAS 3530-53-8)
- 1-((1-Ethyl-5-methyl-1H-pyrazol-4-yl)methyl)-1H-pyrazol-4-amine (CAS 1001757-49-8)
- N-(Cyclopropylmethyl)aniline (CAS 36178-60-6)
- 3-[1-(3,5-Dimethoxybenzoyl)piperidin-4-yl]-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775432-23-9)
- (E)-4-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)benzaldehyde (CAS 149777-85-5)
- 1-(Prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole (CAS 142321-23-1)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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