4-Bromo-4-methyltetrahydropyran CAS 66299-88-5
| CAS No. | 66299-88-5 |
| Molecular Formula | C6H11BrO |
| Molecular Weight | 179.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-4-methyltetrahydropyran (CAS 66299-88-5), molecular formula C6H11BrO and molecular weight 179.05 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-4-methyltetrahydropyran (C6H11BrO) contains a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 179.05 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromo-4-methyltetrahydropyran 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 | C6H11BrO |
| Molecular Weight | 179.05 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-2-hexanone (CAS 10226-29-6)
- 5-Bromo-3-methyl-2-pentanone (CAS 1115-56-6)
- 4-Bromo-2,2-dimethyltetrahydrofuran (CAS 1193-08-4)
- 4-Bromo-2-methyltetrahydro-2H-pyran (CAS 1344300-03-3)
- 1-Bromo-3-ethoxycyclobutane (CAS 1494509-87-3)
- 3-Bromo-2-methyltetrahydro-2H-pyran (CAS 156051-16-0)
- 4-Bromo-1-methoxy-2-methylbut-2-ene (CAS 1610-30-6)
- (2-bromo-1-methoxyethyl)cyclopropane (CAS 1909337-06-9)
Recommended Standards
- 4,5-Dichloro-2-isopropyl-1H-imidazole (CAS 959244-79-2)
- 4-bromocyclohexanol (CAS 89599-47-3)
- 3-Bromo-4-methylpentan-2-one (CAS 29585-01-1)
- 4-Bromooxepane (CAS 942144-28-7)
- 4-Methyl-2H-1,2,3-triazole (CAS 19230-71-8)
- 5-((1,3-Dioxoisoindolin-2-yl)methyl)thiophene-2-sulfonamide (CAS 859491-30-8)
- Dimethyl3-(benzyloxy)-4-oxo-4h-pyran-2,5-dicarboxylate (CAS 1246616-66-9)
- 3,5-Di([1,1'-biphenyl]-4-yl)-1,2,4-oxadiazole (CAS 55667-08-8)
- 5-Fluoro-2-oxoindoline-3-carbaldehyde (CAS 52508-87-9)
- 5-Cyclopropyl-4-fluoro-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 2203751-74-8)
- Levocarnitine Impurity N6 (CAS 16072-48-3)
- N-((5-(Benzo[d]oxazol-2-yl)-2-methoxyphenyl)carbamothioyl)-3-methyl-4-nitrobenzamide (CAS 590394-71-1)
- 4-Chloro-N-(2-hydroxypropyl)benzenesulfonamide (CAS 74668-38-5)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
Why CATO?
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