4-(4-Isopropylphenyl)-5-methyl-2-(4-nitrobenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one CAS 860785-33-7
| CAS No. | 860785-33-7 |
| Molecular Formula | C19H20N4O3 |
| Molecular Weight | 352.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(4-Isopropylphenyl)-5-methyl-2-(4-nitrobenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-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.
4-(4-Isopropylphenyl)-5-methyl-2-(4-nitrobenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860785-33-7), molecular formula C19H20N4O3 and molecular weight 352.39 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 4-(4-Isopropylphenyl)-5-methyl-2-(4-nitrobenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 352.39 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.
Physical & Chemical Properties
| Molecular Formula | C19H20N4O3 |
| Molecular Weight | 352.39 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related Isopropylphenyl Standards
- 1-Benzyl-2-(4-isopropylphenyl)-6-oxopiperidine-3-carboxylic acid (CAS 937604-04-1)
- 5-(4-Isopropylphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 827593-58-8)
- N-(4-isopropylphenyl)-2-((1-phenyl-1H-tetrazol-5-yl)thio)acetamide (CAS 311315-77-2)
- N-(4-isopropylphenyl)-2-((5-(trifluoromethyl)pyridin-2-yl)thio)acetamide (CAS 329080-25-3)
- 2-((4-Isopropylphenyl)thio)-1-methyl-5-nitro-1H-indole-3-carbaldehyde (CAS 338416-13-0)
- 6-(4-(2-(4-Isopropylphenyl)acetyl)piperazin-1-yl)pyridazine-3-carbonitrile (CAS 2170608-82-7)
- 1-(4-Isopropylphenyl)-5-((pyrimidin-2-ylthio)methyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1416344-07-4)
- N-((4-Isopropylphenyl)(2-methyl-1H-indol-3-yl)methyl)pyridin-2-amine (CAS 618404-82-3)
Recommended Standards
- 4-(4-Fluorophenoxy)-6-(methylthio)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 341968-31-8)
- 4-(4-Nitrophenyl)-2,6-diphenylpyridine (CAS 83993-82-2)
- 4-(3-Nitrophenyl)-2,6-diphenylpyridine (CAS 65130-18-9)
- 4-[5-(Furan-2-yl)-1H-pyrazol-3-yl]-1-[(4-nitrophenyl)methyl]piperidine (CAS 321848-26-4)
- 1-(4-Aminocyclohexyl)pyrrolidine-2,5-dione hydrochloride (CAS 1423032-27-2)
- N-(3-Methoxyphenyl)cyclopropanecarboxamide (CAS 14372-14-6)
- 3,5-Dibromo-4-fluorobenzodifluoride (CAS 1804416-76-9)
- 5-(5-Bromoisoindolin-1-yl)oxazole (CAS 1422344-23-7)
- Methyl 2-(4-phenylpiperazin-1-yl)acetate (CAS 201727-67-5)
- (2Z)-2-[(Dimethylamino)methylidene]-1H,2H-naphtho[2,1-b]furan-1-one (CAS 338401-17-5)
- Methyl 2-(5-chlorobenzo[b]thiophen-3-yl)acetate (CAS 95834-67-6)
- 5-(Boc-amino)-1,2,3,4-tetrahydroquinoline (CAS 885951-72-4)
- (5-Chloro-6-(1H-imidazol-1-yl)pyridin-3-yl)boronic acid (CAS 2225155-01-9)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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