25637-16-5 2H-PYRAN, 4-BROMOTETRAHYDRO- 4-BROMOOXACYCLOHEXANE 4-BROMOOXANE 4-BROMOTETRAHYDRO-2H-PYRAN 4-BROMOTETRAHYROPYRAN BC003718 CAS 25637-16-5
| CAS No. | 25637-16-5 |
| Molecular Formula | C5H9BrO |
| Molecular Weight | 165.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
25637-16-5 2H-PYRAN, 4-BROMOTETRAHYDRO- 4-BROMOOXACYCLOHEXANE 4-BROMOOXANE 4-BROMOTETRAHYDRO-2H-PYRAN 4-BROMOTETRAHYROPYRAN BC003718 (CAS 25637-16-5), molecular formula C5H9BrO and molecular weight 165.03 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 25637-16-5 2H-PYRAN, 4-BROMOTETRAHYDRO- 4-BROMOOXACYCLOHEXANE 4-BROMOOXANE 4-BROMOTETRAHYDRO-2H-PYRAN 4-BROMOTETRAHYROPYRAN BC003718 (C5H9BrO) 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 165.03 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.
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 | C5H9BrO |
| Molecular Weight | 165.03 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.) | 1964 |
| Halogen Content | Br-containing |
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