3-Bromo-5,8-dioxaspiro[3.4]octane CAS 20121-76-0
| CAS No. | 20121-76-0 |
| Molecular Formula | C6H9BrO2 |
| Molecular Weight | 193.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Bromo-5,8-dioxaspiro[3.4]octane (CAS 20121-76-0), a certified reference material (molecular formula C6H9BrO2, MW 193.04 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 3-Bromo-5,8-dioxaspiro[3.4]octane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 3-Bromo-5,8-dioxaspiro[3.4]octane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H9BrO2 |
| Molecular Weight | 193.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-bromo-1-(oxolan-3-yl)ethan-1-one (CAS 1101023-98-6)
- (R)-3-Bromo-4,4-dimethyldihydrofuran-2(3H)-one (CAS 1217724-84-9)
- 2-Bromo-5,8-dioxaspiro[3.4]octane (CAS 1257996-82-9)
- 5-bromo-2-methyl-pyrazole-3-carbaldehyde (CAS 1367843-92-2)
- 2-bromo-1-(oxolan-2-yl)ethan-1-one (CAS 141061-17-8)
- 4-Bromo-1-methyl-1<I>H</I>-imidazole-5-carbaldehyde (CAS 141524-74-5)
- 5-bromo-1-methyl-pyrimidin-2-one (CAS 14248-01-2)
- 5-bromo-3-methyl-3,4-dihydropyrimidin-4-one (CAS 14248-02-3)
Recommended Standards
- 3-(2-Bromoethyl)oxolan-2-one (CAS 81478-17-3)
- 3-Bromo-5-ethyldihydrofuran-2(3H)-one (CAS 318488-78-7)
- 2-Bromoethyl 2-methylprop-2-enoate (CAS 4513-56-8)
- 3-Bromocyclopentane-1-carboxylic acid (CAS 885953-19-5)
- Propyl (2,2,3,3,4,4,5,5,6,6,6-undecafluorohexyl) carbonate (CAS 1980085-42-4)
- 1-Cyclopropyl-2-methylpiperazine (CAS 1226290-91-0)
- (S)-2-(2-(Hydroxymethyl)pyrrolidin-1-yl)-N-phenylacetamide (CAS 1311651-05-4)
- 3-Methyl-7,8,9,10-tetrahydrophenanthridine-6-thiol (CAS 917746-34-0)
- 2-Iodohexane (CAS 18589-27-0)
- 1-Propyl-1H-pyrazole-4,5-diamine (CAS 758679-56-0)
- [(2-Ethylimidazo[2,1-b][1,3,4]thiadiazol-6-yl)-methyl]amine dihydrochloride (CAS 1332528-48-9)
- 4-(Dimethylphosphoryl)picolinic acid (CAS 2362010-59-9)
- Tedizolid Impurity 33 (CAS 149524-42-5)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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