4-Chloro-1-methyl-1H-imidazo[4,5-d]pyridazine CAS 1506000-99-2
| CAS No. | 1506000-99-2 |
| Molecular Formula | C6H5ClN4 |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.58 g/mol gives 4-Chloro-1-methyl-1H-imidazo[4,5-d]pyridazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Chloro-1-methyl-1H-imidazo[4,5-d]pyridazine (CAS 1506000-99-2), a certified reference material (molecular formula C6H5ClN4, MW 168.58 g/mol) for analytical method development and quality control.
4-Chloro-1-methyl-1H-imidazo[4,5-d]pyridazine (C6H5ClN4) contains a nitrile group, chlorine 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.
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 | C6H5ClN4 |
| Molecular Weight | 168.58 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
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Recommended Standards
- 2-Chloro-4-hydroxy-6-methylnicotinonitrile (CAS 1450662-08-4)
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