| CAS No. | 1707372-53-9 |
| Molecular Formula | C18H16N4OS |
| Molecular Weight | 336.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 336.41 g/mol gives 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1707372-53-9), a certified reference material (molecular formula C18H16N4OS, MW 336.41 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one 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 | C18H16N4OS |
| Molecular Weight | 336.41 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |