6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-8-amine CAS 6698-57-3
| CAS No. | 6698-57-3 |
| Molecular Formula | C5H4ClN5 |
| Molecular Weight | 169.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-8-amine (CAS 6698-57-3), molecular formula C5H4ClN5 and molecular weight 169.57 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-8-amine (C5H4ClN5) contains a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 169.57 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4ClN5 |
| Molecular Weight | 169.57 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 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
- 7-chloro-1H-pyrazolo[4,3-d]pyrimidin-5-amine (CAS 1086398-36-8)
- 2-Chloro-4-methoxypyrimidine-5-carbonitrile (CAS 1106295-93-5)
- 3-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-6-amine (CAS 1150888-24-6)
- 7-Chloro-3H-imidazo[4,5-b]pyridine 4-oxide (CAS 115953-98-5)
- 7-Chloro-2-methyloxazolo[5,4-d]pyrimidine (CAS 118767-93-4)
- 3-Chloro-6-(hydroxymethyl)pyrazine-2-carbonitrile (CAS 1257072-48-2)
- 7-Chloro[1,2,4]triazolo[4,3-c]pyrimidin-5-amine (CAS 1306739-68-3)
- 5-Chloro-3-(furan-2-yl)-1H-1,2,4-triazole (CAS 1315346-11-2)
Recommended Standards
- 6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-amine (CAS 53890-39-4)
- 6-Chloro-1,2-benzisoxazol-3(2H)-one (CAS 61977-29-5)
- 5H-Imidazo[1,2-b]pyrazole-2-carbonyl chloride (CAS 914637-81-3)
- 6-chloro-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (CAS 304861-88-9)
- 2-(((1-Benzylpyrrolidin-3-yl)methyl)amino)acetic acid (CAS 1353973-94-0)
- 4-(2,4-Dichlorophenoxy)-N-(4-fluorophenyl)butanamide (CAS 303091-85-2)
- 1-(Chloromethyl)-2-fluoro-3-(trifluoromethoxy)benzene (CAS 1373864-66-4)
- 6-(3-(Trifluoromethyl)phenyl)nicotinic acid (CAS 887976-13-8)
- 6-Methylpyridine-4(3H)-thione (CAS 832129-77-8)
- 2-Oxo-6-(trifluoromethyl)-1-{[3-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carbonitrile (CAS 338977-72-3)
- trans-1-(bromomethyl)-3-fluoro-cyclobutane (CAS 2168479-19-2)
- 1-Methylisoquinolin-8-ol (CAS 477585-45-8)
- Phenylbutyrate-d11 Sodium Salt (CAS 1392208-11-5)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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