| CAS No. | 477708-77-3 |
| Molecular Formula | C22H21N5O2 |
| Molecular Weight | 387.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 387.43 g/mol gives 2-(3,5-Dimethylphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-4-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(3,5-Dimethylphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-4-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione (CAS 477708-77-3), a certified reference material (molecular formula C22H21N5O2, MW 387.43 g/mol) for analytical method development and quality control.
The molecular framework of 2-(3,5-Dimethylphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-4-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione (C22H21N5O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C22H21N5O2 |
| Molecular Weight | 387.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |