3-Bromo-5,7-dichlorothieno[3,2-b]pyridine CAS 2476729-53-8
| CAS No. | 2476729-53-8 |
| Molecular Formula | C7H2BrCl2NS |
| Molecular Weight | 282.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.97 g/mol gives 3-Bromo-5,7-dichlorothieno[3,2-b]pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-5,7-dichlorothieno[3,2-b]pyridine (CAS 2476729-53-8) is a high-purity analytical reference standard with the molecular formula C7H2BrCl2NS and a molecular weight of 282.97 g/mol.
Structurally, 3-Bromo-5,7-dichlorothieno[3,2-b]pyridine (C7H2BrCl2NS) contains a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 282.97 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H2BrCl2NS |
| Molecular Weight | 282.97 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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