5-Chloro-3-(2-fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline CAS 339026-03-8
| CAS No. | 339026-03-8 |
| Molecular Formula | C15H8ClFN4 |
| Molecular Weight | 298.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-3-(2-fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Chloro-3-(2-fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 339026-03-8), a certified reference material (molecular formula C15H8ClFN4, MW 298.70 g/mol) for analytical method development and quality control.
Structurally, 5-Chloro-3-(2-fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (C15H8ClFN4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 298.70 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C15H8ClFN4 |
| Molecular Weight | 298.70 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 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 3-[(3-Chloro-4-Ethoxyphenyl)Methyl]-5-Fluoro-1H-Pyrimidine-2,4-Dione (CAS 102613-21-8)
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- 2-Chloro-N-(5-(3-nitrophenyl)-1,3,4-thiadiazol-2-yl)acetamide (CAS 113808-40-5)
- 4-Chloro-2-cyclopropyl-6-(2-(trifluoromethyl)phenyl)pyrimidine (CAS 1159819-79-0)
- 2-Chloro-N-(5-(3-nitrophenyl)-1,2,4-thiadiazol-3-yl)acetamide (CAS 1199589-55-3)
- 1-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-indoline (CAS 1220027-90-6)
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Recommended Standards
- 2-((4-Chlorophenyl)sulfonyl)-5-nitropyridine (CAS 52024-33-6)
- Enoxacin Impurity 10 (CAS 79286-86-5)
- 1-(5-Chlorothiophen-2-yl)-2-((2-nitropyridin-3-yl)oxy)ethan-1-one (CAS 741734-32-7)
- Chlorothiazide-13C,15N2 (CAS 1189440-79-6)
- 2-(4-Amino-2-methoxyphenyl)-1lambda6,2-thiazolidine-1,1-dione (CAS 927995-89-9)
- tert-Butyl (1R,2S,5S)-rel-2-(aminomethyl)-3-azabicyclo[3.1.0]hexane-3-carboxylate (CAS 1017273-73-2)
- 2,5-Dimethylindoline (CAS 90874-56-9)
- 2-cyclopropyl-2-oxoacetaldehyde (CAS 5617-85-6)
- 8-(Cyclopropylmethyl)-3-methyl-8-azabicyclo[3.2.1]Octan-3-ol (CAS 1211724-83-2)
- Lehmannine (CAS 58480-54-9)
- 2-(2-(Hydroxymethyl)-6-oxo-1,6-dihydropyrimidin-4-yl)acetic acid (CAS 35978-14-4)
- (3-Methylimidazo[1,2-a]pyridin-6-yl)methanamine dihydrochloride (CAS 1992982-15-6)
- 2',3',5',6'-Tetrahydro-3H-spiro[benzo[d]thiazole-2,4'-pyran] (CAS 77376-98-8)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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