2-(Methylthio)-5,7-diphenyl-[1,2,4]triazolo[1,5-a]pyrimidine CAS 165684-71-9
| CAS No. | 165684-71-9 |
| Molecular Formula | C18H14N4S |
| Molecular Weight | 318.40 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.
CATO supplies 2-(Methylthio)-5,7-diphenyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 165684-71-9), a certified reference material (molecular formula C18H14N4S, MW 318.40 g/mol) for analytical method development and quality control.
2-(Methylthio)-5,7-diphenyl-[1,2,4]triazolo[1,5-a]pyrimidine (C18H14N4S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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).
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 | C18H14N4S |
| Molecular Weight | 318.40 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 2-(4-Methyl-2-(methylthio)-6-oxo-1,6-dihydropyrimidin-5-yl)ethyl 3-methylbenzoate (CAS 338401-95-9)
- N-(5-(Methylthio)-1,3,4-thiadiazol-2-yl)-5-phenylisoxazole-3-carboxamide (CAS 898513-01-4)
- 3-(Methylthio)-4-(trifluoromethyl)phenylboronic acid pinacol ester (CAS 2121514-10-9)
- 4-Methylthio-3-(trifluoromethyl)phenylboronic acid pinacol ester (CAS 779331-59-8)
- (2-(Methylthio)phenyl)(4-(thiophen-2-yl)piperidin-1-yl)methanone (CAS 1396803-18-1)
- N-(5-(Methylthio)-1,3,4-thiadiazol-2-yl)-2-(trifluoromethyl)benzamide (CAS 391875-79-9)
- N-(5-(Methylthio)-1,3,4-thiadiazol-2-yl)-3-(trifluoromethyl)benzamide (CAS 393567-46-9)
- 4-(Methylthio)-6-oxo-1,2-diphenyl-1,6-dihydropyrimidine-5-carbonitrile (CAS 97242-69-8)
Recommended Standards
- 2-Bromo-3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1355070-59-5)
- 2-Bromo-5-chloropyridine-3-boronic acid pinacol ester (CAS 2121511-83-7)
- (1R,2R,5R,8R,9S,10R,11R)-6-(dideuteriomethylidene)-11-methyl-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid (CAS 132970-89-9)
- 3-Bromo-2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223049-72-5)
- 1,2,4-Triazin-6-amine (CAS 1369147-80-7)
- 1-Butyl-2-methyl-1H-benzo[d]imidazole (CAS 4887-85-8)
- 6-Fluoro-5-methylquinoline-2-carbaldehyde (CAS 1420799-86-5)
- 2-(Piperidin-4-yloxy)nicotinonitrile hydrochloride (CAS 1185310-20-6)
- Dimethyl 3-(trifluoromethyl)pyridine-2,5-dicarboxylate (CAS 1360944-09-7)
- Methyl 1,3-dimethyl-2-oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylate (CAS 1246738-25-9)
- N-((5-Oxotetrahydrofuran-2-yl)methyl)benzamide (CAS 143053-38-7)
- 2-(1,3-Dihydro-2H-benzo[d]imidazol-2-ylidene)-4,4-dimethyl-3-oxopentanenitrile (CAS 158262-74-9)
- 3-Bromo-7-chloro-8-fluoroimidazo[1,2-a]pyridine (CAS 628691-89-4)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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