4-((4-Ethoxy-3-methoxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione CAS 478257-21-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478257-21-5 |
| Molecular Formula | C19H20N4O3S |
| Molecular Weight | 384.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((4-Ethoxy-3-methoxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-21-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H20N4O3S. Molecular weight: 384.45 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H20N4O3S |
| Molecular Weight | 384.45 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 Ethoxy Standards
- 4-((3-Ethoxy-4-hydroxybenzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 613249-73-3)
- 2-Ethoxy-5-(3-nitrobenzamido)benzenesulfonyl chloride (CAS 680618-00-2)
- 2-Ethoxy-5-(4-nitrobenzamido)benzenesulfonyl chloride (CAS 680617-98-5)
- Methyl 1-(2-ethoxy-2-oxoethyl)-6-(4-methoxyphenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1011399-57-7)
- 1-Ethoxy-2,3-difluoro-4-((4-(4-propylcyclohexyl)phenyl)ethynyl)benzene (CAS 123560-57-6)
- 4-Ethoxy-2-methyl-5-(3-morpholinopropyl)-2H-benzo[b]pyridazino[4,3-e][1,4]oxazin-3(5H)-one (CAS 82413-00-1)
- (E)-2-Ethoxy-N-((1-(3-(furan-2-yl)acryloyl)piperidin-4-yl)methyl)benzamide (CAS 1235678-20-2)
- 4-Ethoxy-2,3-difluoro-4'-(4-pentylcyclohexyl)-1,1'-biphenyl (CAS 123560-47-4)
Recommended Standards
- 4-(4-(Phenylsulfonyl)-2-(o-tolyl)oxazol-5-yl)morpholine (CAS 663946-37-0)
- 3-[(4-tert-butoxycarbonyl-1,4-diazepan-1-yl)sulfonyl]benzoic acid (CAS 864685-22-3)
- 4-(4-(Phenylsulfonyl)-2-(p-tolyl)oxazol-5-yl)morpholine (CAS 307553-27-1)
- 4-Benzoyl-2-phenyl-4,6,7,8-tetrahydroquinolin-5(1H)-one (CAS 61049-63-6)
- 2-Cyano-N,N-dimethylbenzamide (CAS 26487-08-1)
- 3-Bromo-7-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1557624-66-4)
- 2-(Thiocyanatomethyl)isoindoline-1,3-dione (CAS 86273-65-6)
- 2-((5-(Trifluoromethyl)pyridin-2-yl)thio)ethan-1-amine hydrochloride (CAS 1208081-88-2)
- 6-(4-Aminophenyl)-2-methyl-3,4-dihydropyrimidin-4-one (CAS 1087792-32-2)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com