| CAS No. | 102989-83-3 |
| Molecular Formula | C13H9F3N4S |
| Molecular Weight | 310.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Methyl-1-phenyl-6-(trifluoromethyl)-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-thione (CAS 102989-83-3), molecular formula C13H9F3N4S and molecular weight 310.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Methyl-1-phenyl-6-(trifluoromethyl)-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-thione (C13H9F3N4S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 310.30 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 3-Methyl-1-phenyl-6-(trifluoromethyl)-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-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.
| Molecular Formula | C13H9F3N4S |
| Molecular Weight | 310.30 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.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |