2-(5-Bromopyridin-3-yl)-7-chloro-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one CAS 1567346-22-8
| CAS No. | 1567346-22-8 |
| Molecular Formula | C10H4BrClN4OS |
| Molecular Weight | 343.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-Bromopyridin-3-yl)-7-chloro-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (C10H4BrClN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(5-Bromopyridin-3-yl)-7-chloro-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 1567346-22-8), molecular formula C10H4BrClN4OS and molecular weight 343.59 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C10H4BrClN4OS |
| Molecular Weight | 343.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Cyclopropyl-(5-methoxy-pyridin-3-ylmethyl)-amine (CAS 1545091-51-7)
- N-(4-Acetamidophenyl)-3-(4-nitrophenoxy)thiophene-2-carboxamide (CAS 252026-94-1)
- 3-[4-(diphenylmethyl)piperazin-1-yl]-3-oxopropanenitrile (CAS 313386-55-9)
- Sulfadiazine Impurity 17 (CAS 450365-21-6)
- 4-((2-Carbamothioylhydrazineylidene)methyl)phenyl picolinate (CAS 325699-71-6)
- 2-(4-Methyl-1H-pyrazol-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1310405-03-8)
- 3,5-Dichloro-2-pentafluoroethyl-pyridine (CAS 1204234-44-5)
- Insulin aspart (CAS 116094-23-6)
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