2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione CAS 321538-35-6
| CAS No. | 321538-35-6 |
| Molecular Formula | C21H19N5O3 |
| Molecular Weight | 389.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione.
CATO supplies 2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione (CAS 321538-35-6), a certified reference material (molecular formula C21H19N5O3, MW 389.41 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 389.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione 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 | C21H19N5O3 |
| Molecular Weight | 389.41 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 |
Related Methoxyphenyl Standards
- n-(4-Methoxyphenyl)-5-(morpholine-4-sulfonyl)-1,3-benzoxazol-2-amine (CAS 730949-76-5)
- 2,3-Bis(2-methoxyphenyl)-N-phenyl-1,2,4-thiadiazol-5(2H)-imine (CAS 524923-88-4)
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Recommended Standards
- 2-(2-((S)-2-((S)-2-Amino-3-(1H-indol-3-yl)propanamido)propanamido)acetamido)acetic acid (CAS 62568-63-2)
- 2-(Furan-2-yl)-7-(3-(4-methoxyphenyl)propyl)-7H-pyrazolo-[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine (CAS 316173-57-6)
- 1-(4,6-Dimethylpyrimidin-2-yl)-6-(4-methoxyphenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 885457-06-7)
- 2H-1-Benzopyran-2-one, 7-(2H-naphtho[1,2-d]triazol-2-yl)-3-phenyl- (CAS 3333-62-8)
- 6-Fluoro-1,2,3,4-tetrahydro-naphthalen-1-ylamine (CAS 1220039-98-4)
- 2-Bromo-N-[4-(1-pyrrolidinylcarbonyl)phenyl]-acetamide (CAS 1138442-75-7)
- Methyl 5-nitro-2-(trifluoromethyl)benzoate (CAS 1214328-90-1)
- Tetrabenazine metabolite (CAS 1688661-95-1)
- N-(9-Oxo-9H-fluoren-2-yl)acetamide (CAS 3096-50-2)
- 3,4-Di(furan-2-yl)-1-(pyridin-2-yl)-6,7-dihydro-5H-cyclopenta[c]pyridine (CAS 692729-84-3)
- (2-Methylquinolin-4-yl)(piperazin-1-yl)methanone dihydrochloride (CAS 1221723-29-0)
- 3-Benzyl-4-bromophenol (CAS 1383790-49-5)
- 2-(5-Ethoxy-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121512-83-0)
- Tirzepatide Impurity 25 X TFA Salt (CAS CATO-C4X-324025)
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