6-Chloro-3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine CAS 35263-20-8
| CAS No. | 35263-20-8 |
| Molecular Formula | C9H5ClN4O |
| Molecular Weight | 220.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 6-Chloro-3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine (C9H5ClN4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
CATO supplies 6-Chloro-3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 35263-20-8), a certified reference material (molecular formula C9H5ClN4O, MW 220.62 g/mol) for analytical method development and quality control.
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 | C9H5ClN4O |
| Molecular Weight | 220.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- 2-(3-Methoxyazetidin-1-yl)acetic acid (CAS 1781971-45-6)
- 6-Chloro-3-(chloromethyl)-5-(difluoromethyl)pyridin-2-amine (CAS 1805922-13-7)
- Ethyl (1S,3S,4S,5R)-rel-2-Boc-5-hydroxy-2-azabicyclo[2.2.1]heptane-3-carboxylate (CAS 501431-06-7)
- N-(5-Benzoyl-6-methyl-2-oxo-2H-pyran-3-yl)-3-chlorobenzenecarboxamide (CAS 339009-29-9)
- 2,2-difluoro-5H-[1,3]dioxolo[4,5-f]indole (CAS 2306270-64-2)
- Ethyl 2,4-dichloro-3-(difluoromethoxy)benzoate (CAS 1806296-99-0)
- N-(1H-Imidazol-1-yl)benzamide (CAS 341035-89-0)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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