5-Bromo-2-(methylthio)oxazolo[5,4-b]pyridine CAS 1783938-78-2
| CAS No. | 1783938-78-2 |
| Molecular Formula | C7H5BrN2OS |
| Molecular Weight | 245.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Bromo-2-(methylthio)oxazolo[5,4-b]pyridine (CAS 1783938-78-2), molecular formula C7H5BrN2OS and molecular weight 245.10 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-2-(methylthio)oxazolo[5,4-b]pyridine (C7H5BrN2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5BrN2OS |
| Molecular Weight | 245.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
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- 3-Bromo-5-methylthieno[2,3-d]pyridazin-4(5H)-one (CAS 1822622-23-0)
- 6,7-Dichloropyrido[2,3-d]pyrimidin-4(3H)-one (CAS 2820180-24-1)
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