4,7-Dichloro-1-methyl-1H-imidazo[4,5-d]pyridazine CAS 5422-71-9
| CAS No. | 5422-71-9 |
| Molecular Formula | C6H4Cl2N4 |
| Molecular Weight | 203.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,7-Dichloro-1-methyl-1H-imidazo[4,5-d]pyridazine (CAS 5422-71-9), molecular formula C6H4Cl2N4 and molecular weight 203.03 g/mol, is a CATO reference standard with documented purity and traceability.
4,7-Dichloro-1-methyl-1H-imidazo[4,5-d]pyridazine (C6H4Cl2N4) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4,7-Dichloro-1-methyl-1H-imidazo[4,5-d]pyridazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4Cl2N4 |
| Molecular Weight | 203.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichloro Standards
- 4,6-Dichloro-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-1-one (CAS 1201676-03-0)
- 4,6-Dichloro-N-(prop-2-yn-1-yl)-1,3,5-triazin-2-amine (CAS 1206849-35-5)
- 3,5-Dichloro-2-methoxyisonicotinonitrile (CAS 1221791-88-3)
- 5,7-Dichloro-1H-pyrrolo[2,3-c]pyridin-2(3H)-one (CAS 1279822-18-2)
- 5,6-Dichloro-1H-pyrrolo[3,2-b]pyridin-2(3H)-one (CAS 136888-26-1)
- 5,7-Dichloro-2-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1373519-64-2)
- 4,7-Dichloro-5H-pyrrolo[3,2-d]pyrimidin-2-amine (CAS 1824497-09-7)
- 3,4-Dichloro-6-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1936199-22-2)
Recommended Standards
- 4,6-Dichloro-3-methylisoxazolo[4,5-c]pyridine (CAS 58315-12-1)
- 4,7-Dichloro-2-methyl-2H-pyrazolo[3,4-d]pyridazine (CAS 2645374-13-4)
- 4,6-Dichloro-2-methyloxazolo[4,5-c]pyridine (CAS 78998-28-4)
- 4-Bromo-2-methoxyphenol (CAS 7368-78-7)
- CCT-251455, >98% (HPLC) (CAS 1400284-80-1)
- 2-Methyl-N-(tetrahydro-4H-pyran-4-ylidene)propane-2-sulfinamide (CAS 861857-62-7)
- 3-(3-Chloro-4-fluorophenyl)piperidine (CAS 1044768-68-4)
- 3-(1-Butyrylpiperidin-2-yl)propanoic acid (CAS 1339726-00-9)
- N-(4-(4-Methoxypiperidin-1-yl)phenyl)methanesulfonamide (CAS 1797856-38-2)
- [1,2,4]Triazolo[1,5-a]pyrazin-2-ylmethanamine (CAS 1823939-18-9)
- 1-(2-(4-(Chloromethyl)phenoxy)ethyl)piperidine (CAS 206550-68-7)
- 3,5-Dimethylcyclohexane-1-carbonitrile (CAS 102942-74-5)
- 6-methoxy-1-phenyl-2,3,4,9-tetrahydro-1H-beta-carboline,HCl (CAS 13637-47-3)
- (DTyr27,36,DThr32)-Neuropeptide Y (27-36) (CAS 163887-48-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com