6-Chloro-[1,2,4]triazolo[4,3-b]pyridazine-3-carboxamide CAS 75680-98-7
| CAS No. | 75680-98-7 |
| Molecular Formula | C6H4ClN5O |
| Molecular Weight | 197.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-[1,2,4]triazolo[4,3-b]pyridazine-3-carboxamide (CAS 75680-98-7) is a high-purity analytical reference standard with the molecular formula C6H4ClN5O and a molecular weight of 197.58 g/mol.
The molecular framework of 6-Chloro-[1,2,4]triazolo[4,3-b]pyridazine-3-carboxamide (C6H4ClN5O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. 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.
As a certified reference material (CRM), 6-Chloro-[1,2,4]triazolo[4,3-b]pyridazine-3-carboxamide 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 | C6H4ClN5O |
| Molecular Weight | 197.58 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
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Recommended Standards
- 5-Chloroisatoic Anhydride (CAS 4743-17-3)
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- 5-Chlorobenzoxazole-2-carboxylic Acid (CAS 49559-65-1)
- 6-Chloro-3H-imidazo[4,5-c]pyridine-2-carboxylic acid (CAS 2306265-12-1)
- (3E)-3-{[(4-chlorophenyl)methoxy]imino}-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}propan-1-one (CAS 478046-99-0)
- 3-(Furan-2-ylmethyl)-2,4-dioxo-N-(pyridin-4-yl)-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 1421531-55-6)
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