2199-94-2 6-Bromo-2-oxo-2H-1-benzopyran-3-carbonyl chloride DTXSID40675493 CAS 2199-94-2
| CAS No. | 2199-94-2 |
| Molecular Formula | C10H4BrClO3 |
| Molecular Weight | 287.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 287.49 g/mol gives 2199-94-2 6-Bromo-2-oxo-2H-1-benzopyran-3-carbonyl chloride DTXSID40675493 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2199-94-2 6-Bromo-2-oxo-2H-1-benzopyran-3-carbonyl chloride DTXSID40675493 (CAS 2199-94-2), molecular formula C10H4BrClO3 and molecular weight 287.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H4BrClO3, 2199-94-2 6-Bromo-2-oxo-2H-1-benzopyran-3-carbonyl chloride DTXSID40675493 contains a carboxylic acid group, 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 287.49 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.
CATO manufactures 2199-94-2 6-Bromo-2-oxo-2H-1-benzopyran-3-carbonyl chloride DTXSID40675493 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H4BrClO3 |
| Molecular Weight | 287.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl/Br-containing |
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