4-((4-(Diethylamino)-2-hydroxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione CAS 497920-23-7
| CAS No. | 497920-23-7 |
| Molecular Formula | C20H23N5O2S |
| Molecular Weight | 397.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-((4-(Diethylamino)-2-hydroxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione 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-(Diethylamino)-2-hydroxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497920-23-7) is a high-purity analytical reference standard with the molecular formula C20H23N5O2S and a molecular weight of 397.49 g/mol.
4-((4-(Diethylamino)-2-hydroxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (C20H23N5O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C20H23N5O2S |
| Molecular Weight | 397.49 g/mol |
| 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.) | 2025 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Diethylamino Standards
- 7-(Diethylamino)-N-(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propyl)-2-oxo-2H-chromene-3-carboxamide (CAS 160291-54-3)
- 4-((4-(Diethylamino)benzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497921-92-3)
- 6'-(Diethylamino)-1',3'-dimethylfluoran (CAS 21934-68-9)
- 4-(4-Diethylamino-benzylidene)-2-methyl-1,2,3,4-tetrahydro-acridine-9-carboxylic acid (CAS 721413-97-4)
- 2-Diethylamino-N-[4-(2-dimethylamino-5-trifluoro-methyl-pyridin-3-yl)-phenyl]-acetamide (CAS 1311279-98-7)
- N1-(3-(Diethylamino)propyl)-N2-(2-phenyl-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)oxalamide (CAS 900009-71-4)
- (Diethylamino)bis(4-trifluoromethylphenyl)phosphane (CAS 13685-91-1)
- (R)-1-(6-Diethylamino-pyrimidin-4-yl)-pyrrolidin-3-ol (CAS 1353944-24-7)
Recommended Standards
- 4-((2-(Azepan-1-ylsulfonyl)ethyl)(pyridin-4-ylmethyl)amino)-4-oxobutanoic acid (CAS 919748-82-6)
- 5-(4-Methylpiperazin-1-yl)-4-(phenylsulfonyl)-2-(o-tolyl)oxazole (CAS 862741-13-7)
- 2-[(1R,3R)-3-[[(2S,3S)-2-Azido-3-methyl-1-oxopentyl]amino]-1-hydroxy-4-methylpentyl]-4-thiazolecarboxylic Acid Methyl Ester (CAS 921927-93-7)
- 5-Benzoyl-4,6-diphenyl-2-thioxohexahydropyrimidine-5-carbonitrile (CAS 95104-53-3)
- Scriptaid, 97% (CAS 287383-59-9)
- (R)-N-Methyl-1,1,1-Trifluoro-2-propylsulfamoyl chloride (CAS 1389310-04-6)
- 2-Cyclopropylpyrimidine-5-carbonitrile (CAS 1158735-11-5)
- 4-(2,4-Dichlorophenyl)oxane-4-carboxylic acid (CAS 1152567-67-3)
- N-(Benzo[d][1,3]dioxol-5-yl)-2-((6-methyl-2-(pyrrolidin-1-yl)pyrimidin-4-yl)oxy)acetamide (CAS 1030097-27-8)
- 5-tert-Butyl 3-ethyl 4H,5H,6H,7H-thieno[3,2-c]pyridine-3,5-dicarboxylate (CAS 1363381-39-8)
- n-(4-Fluorophenyl)isobutyramide (CAS 348594-39-8)
- 3,5-Difluoro-4-iodobenzaldehyde (CAS 357166-64-4)
- Tavaborole Impurity 4 (CAS 174671-88-6)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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