5-Chloro-3-iodo-1H-pyrazolo[3,4-c]pyridazine CAS 1658467-44-7
| CAS No. | 1658467-44-7 |
| Molecular Formula | C5H2ClIN4 |
| Molecular Weight | 280.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Chloro-3-iodo-1H-pyrazolo[3,4-c]pyridazine.
CATO supplies 5-Chloro-3-iodo-1H-pyrazolo[3,4-c]pyridazine (CAS 1658467-44-7), a certified reference material (molecular formula C5H2ClIN4, MW 280.45 g/mol) for analytical method development and quality control.
5-Chloro-3-iodo-1H-pyrazolo[3,4-c]pyridazine (C5H2ClIN4) contains a nitrile group, chlorine/iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Chloro-3-iodo-1H-pyrazolo[3,4-c]pyridazine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H2ClIN4 |
| Molecular Weight | 280.45 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 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 4-Chloro-3-iodo-1H-pyrazolo[3,4-d]pyrimidine (CAS 1082950-96-6)
- 6-Chloro-3-iodo-1H-pyrazolo[3,4-d]pyrimidine, 97% (CAS 1393547-40-4)
- 5-Chloro-3-iodo-1H-pyrazolo[3,4-b]pyrazine (CAS 1393554-07-8)
- 6-Chloro-8-iodo-9H-purine (CAS 1801425-40-0)
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