4-Bromo-4-(bromomethyl)tetrahydro-2H-pyran CAS 79862-93-4
| CAS No. | 79862-93-4 |
| Molecular Formula | C6H10Br2O |
| Molecular Weight | 257.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromo-4-(bromomethyl)tetrahydro-2H-pyran is closely related to a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromo-4-(bromomethyl)tetrahydro-2H-pyran (CAS 79862-93-4), molecular formula C6H10Br2O and molecular weight 257.95 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-4-(bromomethyl)tetrahydro-2H-pyran (C6H10Br2O) 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 257.95 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.
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 | C6H10Br2O |
| Molecular Weight | 257.95 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-bromo-3-(bromomethyl)-1-methyl-1H-pyrazole (CAS 1383575-45-8)
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- 2-Bromo-4,6-dichlorobenzenethiol (CAS 1208075-17-5)
- 3-Bromo-2,4-dichlorobenzenethiol (CAS 1349718-23-5)
- 2-Bromo-4,5-dichloro-1-propyl-1H-imidazole (CAS 140187-05-9)
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Recommended Standards
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- 2-Bromohexanoylbromide (CAS 54971-26-5)
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- tert-Butyl N-({3-formylbicyclo[1.1.1]pentan-1-yl}methyl)carbamate (CAS 1638767-79-9)
- 2-[(4-bromo-2-nitrophenyl)amino]-2-methylpropanoic acid (CAS 1293197-77-9)
- 5-Iodo-2-methylisonicotinic acid (CAS 88482-18-2)
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