3-BROMO-5-CHLORO-2-METHOXY-4-METHYLPYRIDINE CAS 851607-30-2
| CAS No. | 851607-30-2 |
| Molecular Formula | C7H7BrClNO |
| Molecular Weight | 236.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-BROMO-5-CHLORO-2-METHOXY-4-METHYLPYRIDINE is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-BROMO-5-CHLORO-2-METHOXY-4-METHYLPYRIDINE (CAS 851607-30-2), molecular formula C7H7BrClNO and molecular weight 236.49 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-BROMO-5-CHLORO-2-METHOXY-4-METHYLPYRIDINE (C7H7BrClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 236.49 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 | C7H7BrClNO |
| Molecular Weight | 236.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
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- 4-((6,7-Dimethoxyquinolin-4-yl)oxy)-2-methylaniline (CAS 228559-82-8)
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