| CAS No. | 1369869-79-3 |
| Molecular Formula | C10H10BrClO |
| Molecular Weight | 261.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 261.54 g/mol gives 4-Bromo-2-chloro-1-(cyclopropylmethoxy)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-2-chloro-1-(cyclopropylmethoxy)benzene (CAS 1369869-79-3), molecular formula C10H10BrClO and molecular weight 261.54 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H10BrClO, 4-Bromo-2-chloro-1-(cyclopropylmethoxy)benzene contains a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 261.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
| Molecular Formula | C10H10BrClO |
| Molecular Weight | 261.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl/Br-containing |