| CAS No. | 775543-16-3 |
| Molecular Formula | C7H7N5OS |
| Molecular Weight | 209.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The molecular framework of 7-Methyl-5-thioxo-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide (C7H7N5OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 7-Methyl-5-thioxo-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide (CAS 775543-16-3), a certified reference material (molecular formula C7H7N5OS, MW 209.23 g/mol) for analytical method development and quality control.
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), 7-Methyl-5-thioxo-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide 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 | C7H7N5OS |
| Molecular Weight | 209.23 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |