2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-7-(4-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine CAS 251096-58-9
| CAS No. | 251096-58-9 |
| Molecular Formula | C17H8Cl2F3N5S |
| Molecular Weight | 442.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-7-(4-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 251096-58-9), molecular formula C17H8Cl2F3N5S and molecular weight 442.25 g/mol, is a CATO reference standard with documented purity and traceability.
2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-7-(4-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine (C17H8Cl2F3N5S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-7-(4-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine 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 | C17H8Cl2F3N5S |
| Molecular Weight | 442.25 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-(6-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}pyridin-2-yl)-1-(4-chlorophenyl)urea (CAS 477864-66-7)
- N3-(4-{[3-chloro-5-(trifluoromethyl)-2-pyridyl]methoxy}phenyl)-6-chloronicotinamide (CAS 264924-66-5)
- 2-Chloro-4-phenyl-6-(tribromomethyl)-1,3,5-triazine (CAS 648432-35-3)
- 5-Chloro-1-(4-chlorobenzyl)-N-(3,5-dichlorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339024-82-7)
- 5-Chloro-1-[(3-chlorophenyl)methyl]-N-(2,4-dichlorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338977-76-7)
- 5-Chloro-1-[(3-chlorophenyl)methyl]-N-(3,5-dichlorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 338977-41-6)
- 5-Chloro-N-(4-chlorophenyl)-1-(2,6-dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339023-91-5)
- 5-Chloro-N-(4-chlorophenyl)-1-[(2,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 242797-24-6)
Recommended Standards
- 1-(5-(Benzyloxy)-2,4-dichlorophenyl)-5-(4-nitrophenyl)-1H-tetrazole (CAS 338961-49-2)
- 2-Methoxyethyl 2-amino-4-(2,3-dichlorophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate (CAS 902304-37-4)
- 1-(2,2-Diphenyl-1,3-benzodioxol-5-yl)-2-iodoethanone (CAS 917379-97-6)
- 2-Methoxyethyl 2-amino-4-(3,4-dichlorophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate (CAS 904262-23-3)
- 4-((2-Bromobenzylidene)amino)-3-(2-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 577763-98-5)
- LDCA (CAS 349106-80-5)
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- (E)-[1-(4-Methyl-2-phenyl-1,3-thiazol-5-yl)ethylidene]amino N-phenylcarbamate (CAS 477858-11-0)
- (S)-1-(3-Bromophenyl)propan-1-amine (CAS 760171-71-9)
- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- 3-Bromo-2-chloro-6-methyl-4-nitropyridine (CAS 1805519-08-7)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-5,5,5-trifluoropentanoic acid (CAS 144207-42-1)
- (E)-4-((3-chlorophenyl)diazenyl)-N,N-dimethylaniline (CAS 3789-77-3)
- Copper Peptide ยท2 acetate salt (CAS 130120-57-9)
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