7-(4-Chlorophenyl)-2-(o-tolyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile CAS 860611-21-8
| CAS No. | 860611-21-8 |
| Molecular Formula | C20H13ClN4 |
| Molecular Weight | 344.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 344.80 g/mol gives 7-(4-Chlorophenyl)-2-(o-tolyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-(4-Chlorophenyl)-2-(o-tolyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (CAS 860611-21-8), molecular formula C20H13ClN4 and molecular weight 344.80 g/mol, is a CATO reference standard with documented purity and traceability.
7-(4-Chlorophenyl)-2-(o-tolyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (C20H13ClN4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C20H13ClN4 |
| Molecular Weight | 344.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorophenyl Standards
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Recommended Standards
- 2-Chloro-4-[4-(3-pyridinyl)phenyl]-6-phenyl-1,3,5-triazine (CAS 2074632-12-3)
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- tert-Butyl 4-(5-((chlorocarbonyl)amino)-1-methyl-1H-1,2,4-triazol-3-yl)piperazine-1-carboxylate (CAS 1951441-30-7)
- Ethyl 7-(benzyl(methyl)amino)-5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 2271478-40-9)
- 3-Chloro-2-[(1Z)-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}(4-chlorophenyl)methyl]-5-(trifluoromethyl)pyridine (CAS 303151-97-5)
- 2-(3-Nitropyridin-4-yl)acetamide (CAS 2140305-39-9)
- N-(dibenzo[b,d]thiophen-3-yl)dibenzo[b,d]thiophen-2-amine (CAS 2033135-18-9)
- 2-Thioxothiazolidine-4-carboxylic Acid (CAS 20933-67-9)
- 2-(5-Bromo-2-cyano-3-nitrophenyl)acetic acid (CAS 1805574-08-6)
- 2-Chloro-3-(2,3,4,5,6-pentamethylphenyl)-1-propene (CAS 951893-55-3)
- 1-(1-Methyl-1H-imidazol-2-yl)ethan-1-amine (CAS 927986-24-1)
- 2,5-Dibromo-3-ethyl-6-methylpyridine (CAS 38749-85-8)
- 3-Cyclopropyl-2-(4-fluorophenyl)-1,3-thiazolidin-4-one (CAS 871217-53-7)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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