4-((2-Chloro-5-nitrobenzylidene)amino)-3-(3-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione CAS 478255-44-6
| CAS No. | 478255-44-6 |
| Molecular Formula | C15H9Cl2N5O2S |
| Molecular Weight | 394.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-((2-Chloro-5-nitrobenzylidene)amino)-3-(3-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478255-44-6) is a high-purity analytical reference standard with the molecular formula C15H9Cl2N5O2S and a molecular weight of 394.24 g/mol.
Based on its molecular formula C15H9Cl2N5O2S, 4-((2-Chloro-5-nitrobenzylidene)amino)-3-(3-chlorophenyl)-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, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 394.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C15H9Cl2N5O2S |
| Molecular Weight | 394.24 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-((2-Chloro-5-nitrobenzylidene)amino)-3-(2-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 172844-88-1)
- 1-(3-Chloro-4-methylphenyl)-3-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)thiourea (CAS 326815-22-9)
- 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(2-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478254-38-5)
- 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(3-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478255-27-5)
- 4-Chloro-2-((3S)-7-chloro-6-fluoro-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl)-5-methoxyaniline (CAS 1958821-60-7)
- N-(3-chloro-4-methoxybenzyl)-4-(2-chlorophenyl)piperazine-1-carboxamide (CAS 866132-10-7)
- 4-Chloro-2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-5-(piperazin-1-yl)pyridazin-3(2H)-one (CAS 338399-95-4)
- 4-Chloro-2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-6-(trifluoromethyl)pyrimidine (CAS 1823183-75-0)
Recommended Standards
- 3-((4-Bromophenyl)sulfonyl)-1-phenylpyrrolidine-2,5-dione (CAS 90455-57-5)
- 2-(4-Bromophenyl)-2-(4-(4-fluorobenzoyl)phenyl)acetonitrile (CAS 339115-52-5)
- 4-(2-(2-Bromophenyl)-4-(4-fluorophenyl)-1H-imidazol-5-yl)pyridine (CAS 384820-17-1)
- 4-(4-Bromophenyl)-2-phenylthiomorpholine-3,5-dione 1,1-dioxide (CAS 339109-46-5)
- 4-(2-Fluorophenyl)piperidine (CAS 180161-17-5)
- Dextropropoxyphene EP Impurity B (CAS 33318-28-4)
- Methyl 3-(5-(((4-methoxybenzoyl)oxy)methyl)furan-2-yl)thiophene-2-carboxylate (CAS 320418-01-7)
- Robenidine Hydrochloride (CAS 25875-50-7)
- 2-(((Tert-butyldiphenylsilyl)oxy)methyl)cyclobutan-1-one (CAS 140852-32-0)
- 2-((2-((4-Bromo-2-methylphenyl)amino)-2-oxoethyl)thio)acetic acid (CAS 483312-15-8)
- 4-(2-Aminoethyl)thiomorpholine (CAS 53515-36-9)
- Diethyl (methylenebis(4,1-phenylene))dicarbamate (CAS 10097-16-2)
- 1-(2,4-Dimethyl-5-(4-(tetrahydrofuran-2-carbonyl)piperazine-1-carbonyl)-1H-pyrrol-3-yl)ethanone (CAS 1197834-97-1)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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