7-Methyl-2-(4-(trifluoromethyl)phenyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-5-thione CAS 866142-89-4
| CAS No. | 866142-89-4 |
| Molecular Formula | C13H8F3N3S2 |
| Molecular Weight | 327.35 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.
7-Methyl-2-(4-(trifluoromethyl)phenyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-5-thione (CAS 866142-89-4) is a high-purity analytical reference standard with the molecular formula C13H8F3N3S2 and a molecular weight of 327.35 g/mol.
7-Methyl-2-(4-(trifluoromethyl)phenyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-5-thione (C13H8F3N3S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine 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).
As a certified reference material (CRM), 7-Methyl-2-(4-(trifluoromethyl)phenyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-5-thione 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 | C13H8F3N3S2 |
| Molecular Weight | 327.35 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 5-Acetyl-7-fluoro-4-phenylpyrano[3,2-b]indol-2(5H)-one (CAS 2347639-56-7)
- Methyl (1S,3S,6R,8S)-3-phenyl-2,4,7-trioxabicyclo[4.2.0]octane-8-carboxylate (CAS 131550-06-6)
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- 7-(3-Thienyl)heptanoic acid (CAS 26420-23-5)
- n-((1h-Pyrazol-3-yl)methyl)-3-nitropyridin-2-amine (CAS 1249818-03-8)
- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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