4-((3,4-Dihydroxybenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione CAS 478256-29-0
| CAS No. | 478256-29-0 |
| Molecular Formula | C16H14N4O2S |
| Molecular Weight | 326.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H14N4O2S, 4-((3,4-Dihydroxybenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 326.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-((3,4-Dihydroxybenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-29-0) is a high-purity analytical reference standard with the molecular formula C16H14N4O2S and a molecular weight of 326.37 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-((3,4-Dihydroxybenzylidene)amino)-3-(m-tolyl)-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.
Physical & Chemical Properties
| Molecular Formula | C16H14N4O2S |
| Molecular Weight | 326.37 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 | 4 |
| Sulfur Atoms | 1 |
Related Dihydroxybenzylidene Standards
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(2-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 577789-70-9)
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(4-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 573975-64-1)
- 3-(2-(2,3-Dihydroxybenzylidene)-1-methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide (CAS 591242-33-0)
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(pyridin-2-yl)-1H-1,2,4-triazole-5(4H)-thione (CAS 613248-43-4)
- (5E)-5-(3,4-Dihydroxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 897340-70-4)
- 4-((2,4-Dihydroxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497920-24-8)
- N'-(2,4-Dihydroxybenzylidene)-4-nitrobenzohydrazide (CAS 303084-13-1)
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497922-01-7)
Recommended Standards
- 4-((3-(Furan-2-yl)allylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-18-0)
- 4-(4-Fluorophenyl)-3,6-diphenylpyridazine (CAS 838814-77-0)
- 4-((1-Acetylindoline)-5-sulfonamido)butanoic acid (CAS 899718-22-0)
- 4-(5-(N,N-dimethylsulfamoyl)indolin-1-yl)-4-oxobutanoic acid (CAS 393795-65-8)
- N-(3-chloropropyl)prop-2-en-1-amine (CAS 1211447-32-3)
- 2,4-Dichloro-N-isopropyl-N-(2-(isopropylamino)ethyl)benzenesulfonamide (CAS 946387-07-1)
- [N-[(1R,2R)-2-(Amino-κN)-1,2-diphenylethyl]methanesulfonamidato(2-)-κN][(1,2,3,4,5,6-η)-1-methyl-4-(1-methylethyl)benzene]ruthenium (CAS 709674-03-3)
- 1-(3-(Furan-2-yl)-5-(2-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)propan-1-one (CAS 900134-11-4)
- 5-Fluoro-4-iodopyrimidine (CAS 1806346-54-2)
- (S)-6-Methoxychroman-4-amine (CAS 1018978-90-9)
- Desloratadine Impurity 55 (CAS CATO-C4X-143055)
- 1H-Pyrrole-2,3-dicarboxylic acid hydrate (CAS 1329802-41-6)
- Methyl5-fluoro-6-hydroxy-naphthalene-1-carboxylate (CAS 388622-47-7)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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