6-Chloro-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-8-carboxylic acid HCl CAS 1951444-55-5
| CAS No. | 1951444-55-5 |
| Molecular Formula | C11H6ClN5O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Chloro-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-8-carboxylic acid HCl (C11H6ClN5O2HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 312.11 g/mol, it falls into the moderately-high-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.
6-Chloro-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-8-carboxylic acid HCl (CAS 1951444-55-5), molecular formula C11H6ClN5O2HCl and molecular weight 312.11 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C11H6ClN5O2 HCl |
| Molecular Weight | 312.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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- 2-(1,5-naphthyridin-4-yl)ethan-1-ol (CAS 1822663-61-5)
- (3-Fluoro-5-(3-methylpiperidine-1-carbonyl)phenyl)boronic acid (CAS 1449133-20-3)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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