5,7-Dimethyl-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine CAS 5528-56-3
| CAS No. | 5528-56-3 |
| Molecular Formula | C14H13N3 |
| Molecular Weight | 223.27 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.
5,7-Dimethyl-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 5528-56-3), molecular formula C14H13N3 and molecular weight 223.27 g/mol, is a CATO reference standard with documented purity and traceability.
5,7-Dimethyl-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine (C14H13N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C14H13N3 |
| Molecular Weight | 223.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
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- 1-(1,3-Dimethyl-1h-pyrazol-4-yl)-2-morpholinoethan-1-one (CAS 1171236-06-8)
- Ethyl 5,7-dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1272758-09-4)
- 1,3-Dimethyl-5-(piperazin-1-yl)-1h-pyrazole-4-carboxamide (CAS 1338996-72-7)
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-1-(3-hydroxyazetidin-1-yl)propan-1-one (CAS 1340317-10-3)
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Recommended Standards
- 5,7-dimethyl-2-phenylpyrazolo[1,5-a]pyrimidine (CAS 87119-67-3)
- 5-Amino-1-(2,3-dihydro-1H-inden-1-yl)-1H-pyrrole-3-carbonitrile (CAS 648893-27-0)
- 5,7-Dimethyl-2-phenylimidazo[1,2-c]pyrimidine (CAS 61736-27-4)
- 5-Amino-2-(benzylamino)benzonitrile (CAS 952917-89-4)
- L-Pyroglu-L-His-L-Trp (CAS 35925-21-4)
- Methyl 4-methylfuran-3-carboxylate (CAS 57279-03-5)
- 2-(Pyrrolidin-1-yl)-N-(4-sulfamoylphenyl)acetamide (CAS 91533-02-7)
- 5-(3-Ethoxy-1-ethyl-1H-pyrazol-4-yl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 1171329-39-7)
- tert-Butyl 4-(((6-chloro-2-(methylthio)pyrimidin-4-yl)amino)methyl)piperidine-1-carboxylate (CAS 1261232-62-5)
- 5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene (CAS 214493-03-5)
- (2S,4S)-4-Cyclohexyl-1-(2-(hydroxy(4-(4-hydroxyphenyl)butyl)phosphoryl)acetyl)pyrrolidine-2-carboxylic acid (CAS 113411-10-2)
- Biotin impurity 25 (CAS CATO-C4X-156325)
- Thymidine3-monophosphateammoniumsalt (CAS 40705-89-3)
- Peptide Impurity 05 (CAS 2322924-83-2)
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