Ethyl 2-(4-nitrobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate CAS 329059-84-9
| CAS No. | 329059-84-9 |
| Molecular Formula | C18H16N2O6S |
| Molecular Weight | 388.39 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.
CATO supplies Ethyl 2-(4-nitrobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 329059-84-9), a certified reference material (molecular formula C18H16N2O6S, MW 388.39 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H16N2O6S, Ethyl 2-(4-nitrobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate contains a flavonoid core, 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 388.39 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).
CATO manufactures Ethyl 2-(4-nitrobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H16N2O6S |
| Molecular Weight | 388.39 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 | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 2-(4-nitrobenzamido)-5-phenylthiophene-3-carboxylate (CAS 307536-20-5)
- Ethyl 2-(4-nitrobenzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 72625-08-2)
- Ethyl 3-(4-nitrobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (CAS 338418-35-2)
- 2-(3-Nitrobenzamido)-2-oxoethyl 1-(3-fluorophenyl)cyclopentane-1-carboxylate (CAS 733000-36-7)
- 4-(4-Nitrobenzamido)benzene-1-sulfonyl fluoride (CAS 19188-68-2)
- 3-(4-Nitrobenzamido)-1-phenyl-1H-pyrazol-5-yl benzoate (CAS 476479-81-9)
- 3-(4-Nitrobenzamido)benzene-1-sulfonyl fluoride (CAS 19160-14-6)
- 3-(3-Nitrobenzamido)benzene-1-sulfonyl fluoride (CAS 19160-16-8)
Recommended Standards
- 6-(4-Ethoxy-phenylsulfamoyl)-2-hydroxy-quinoline-4-carboxylic acid (CAS 568543-64-6)
- Ethyl 2-[1-(4-methoxybenzenesulfonyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]-2-oxoacetate (CAS 860612-17-5)
- 4,4,4-trifluoro-2-({[4-methyl-6-(methylthio)-1,3,5-triazin-2-yl]amino}methylidene)-1-(2-thienyl)butane-1,3-dione (CAS 649578-97-2)
- N-(4-Aminoquinazolin-6-yl)-2-((4-fluorophenoxy)methyl)benzamide (CAS 828930-95-6)
- 4-(3,5-Dimethylphenyl)butanal (CAS 1333246-48-2)
- 2-(Aminomethyl)-5-(difluoromethyl)-3-methoxypyridine-4-acetonitrile (CAS 1361913-27-0)
- N-(5-Methylisoxazol-4-yl)cyclopropanecarboxamide (CAS 600699-38-5)
- 3-(trifluoromethyl)-1H-pyrazin-2-one (CAS 1191035-90-1)
- Bacitracin Impurity B (CAS CATO-C4X-15532)
- 1-Benzyl-4-vinylpiperidine (CAS 42790-44-3)
- N-aminoquinoline-2-carboximidamide (CAS 1014-17-1)
- 4-(1-Methylpiperidin-4-yl)phenol hydrobromide (CAS 855626-98-1)
- 2-(1-(2,4-Dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carbonyl)-N-methylhydrazine-1-carbothioamide (CAS 477853-03-5)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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