| CAS No. | 1909337-23-0 |
| Molecular Formula | C11H9BrO3S |
| Molecular Weight | 301.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 301.16 g/mol gives methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate (CAS 1909337-23-0), a certified reference material (molecular formula C11H9BrO3S, MW 301.16 g/mol) for analytical method development and quality control.
The molecular framework of methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate (C11H9BrO3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C11H9BrO3S |
| Molecular Weight | 301.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |