2-(4-Ethoxyphenyl)-5-(3-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one CAS 606953-72-4
| CAS No. | 606953-72-4 |
| Molecular Formula | C20H17N3O3S |
| Molecular Weight | 379.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Ethoxyphenyl)-5-(3-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-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.
2-(4-Ethoxyphenyl)-5-(3-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606953-72-4), molecular formula C20H17N3O3S and molecular weight 379.43 g/mol, is a CATO reference standard with documented purity and traceability.
2-(4-Ethoxyphenyl)-5-(3-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (C20H17N3O3S) 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 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 | C20H17N3O3S |
| Molecular Weight | 379.43 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethoxyphenyl Standards
- 2-(4-Ethoxyphenyl)-5-(2-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 617694-30-1)
- 3-(4-Ethoxyphenyl)-7-phenylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 67744-85-8)
- (2-Ethoxyphenyl)(2-(4-(trifluoromethyl)phenyl)morpholino)methanone (CAS 1351589-19-9)
- (E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide (CAS 331461-86-0)
- 2-((4-Ethoxyphenyl)amino)-2-oxoethyl 5-bromonicotinate (CAS 729564-97-0)
- 1-(4-(6-(4-Ethoxyphenyl)pyridazin-3-yl)piperazin-1-yl)-2,2,2-trifluoroethan-1-one (CAS 1040639-74-4)
- N-(4-Ethoxyphenyl)-3-(5-(3-nitrophenyl)furan-2-yl)propanamide (CAS 853329-80-3)
- N-(4-Ethoxyphenyl)-3-(5-(3-nitrophenyl)furan-2-yl)acrylamide (CAS 853351-29-8)
Recommended Standards
- 2-[(4-Cyano-5-methyl-1,2-thiazol-3-yl)sulfanyl]-N'-[2-(4-fluorophenoxy)ethanimidoyl]acetohydrazide (CAS 338418-60-3)
- 2-((4-(2-Fluorophenyl)piperazin-1-yl)methyl)-2,3-dihydroimidazo[1,2-c]quinazolin-5(1H)-one (CAS 477859-05-5)
- 3-(2-((1S,5R,6S)-6-(4-Fluorophenyl)-3-azabicyclo[3.2.0]heptan-3-yl)ethyl)quinazoline-2,4(1H,3H)-dione (CAS 208661-17-0)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid (CAS 372143-96-9)
- 2-(3-Iodophenyl)benzo[d]oxazole-5-carbohydrazide (CAS 1706442-41-2)
- 4'-Fluoro-3'-methoxy-[1,1'-biphenyl]-4-ol (CAS 64465-63-0)
- Tert-butyl (1-(3-fluoro-4-(trifluoromethyl)benzyl)piperidin-4-yl)carbamate (CAS 1286265-98-2)
- 4-Bromo-2-methyloxazolo[4,5-c]pyridine (CAS 1935133-71-3)
- 1-[Butyl(methyl)carbamoyl]-3-methyl-1H-imidazol-3-ium iodide (CAS 1034607-39-0)
- Methyl 2-(bromomethyl)-5-(trifluoromethyl)benzoate (CAS 875895-66-2)
- Ethyl 2,7,7-trimethyl-5-phenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 667920-89-0)
- 4-(2-Methoxyphenyl)-1,2,3,6-tetrahydropyridine (CAS 154422-95-4)
- 3-(3,4-Dihydroxybutyl)-5,5-dimethyloxazolidine-2,4-dione (CAS 64920-93-0)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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 18665070610 / Nicole.chen@cato-chem.com