| CAS No. | 65018-89-5 |
| Molecular Formula | C12H12BrNO2 |
| Molecular Weight | 282.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
6-Cyano-trans-3-bromo-3,4-dihydro-2,2-dimethyl-2H-benzo-[b]-pyran-4-ol 65018-89-5 trans-3-Bromo-3,4-dihydro-4-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile (CAS 65018-89-5), molecular formula C12H12BrNO2 and molecular weight 282.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-Cyano-trans-3-bromo-3,4-dihydro-2,2-dimethyl-2H-benzo-[b]-pyran-4-ol 65018-89-5 trans-3-Bromo-3,4-dihydro-4-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile (C12H12BrNO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
| Molecular Formula | C12H12BrNO2 |
| Molecular Weight | 282.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |