7-Ethoxy-2-nitrobenzofuran CAS 56897-23-5
| CAS No. | 56897-23-5 |
| Molecular Formula | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Ethoxy-2-nitrobenzofuran (CAS 56897-23-5) is a high-purity analytical reference standard with the molecular formula C10H9NO4 and a molecular weight of 207.18 g/mol.
Based on its molecular formula C10H9NO4, 7-Ethoxy-2-nitrobenzofuran contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.18 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 7-Ethoxy-2-nitrobenzofuran 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 | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
Related Ethoxy Standards
- 6-Ethoxy-2-nitrobenzofuran (CAS 67073-93-2)
- 5-Ethoxy-6-nitro-1H-indazole (CAS 1226902-28-8)
- 2-Ethoxy-3-hydroxypyrido[3,2-d]pyrimidin-4(3H)-one (CAS 128037-06-9)
- 2-Ethoxy-1-methyl-5-(2,2,2-trifluoroethyl)-1H-pyrrole (CAS 130719-83-4)
- 3-Ethoxy-5-nitro-1H-indazole (CAS 1365939-15-6)
- 6-Ethoxy-5-nitro-1H-indazole (CAS 1499162-58-1)
- 4-Ethoxy-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 1565508-88-4)
- 5-Ethoxy-1H-benzo[d][1,2,3]triazole-6-carboxylic acid (CAS 213627-49-7)
Recommended Standards
- 6-methoxy-3-nitro-2H-chromene (CAS 92210-61-2)
- 7-Methoxy-2-methyl-4-nitrobenzofuran (CAS 89228-70-6)
- 6-Hydroxy-5-methoxyindole-2-carboxylic acid, 98% (CAS 2638-99-5)
- 7-Methoxy-2-methyl-5-nitrobenzofuran (CAS 89228-69-3)
- 1-(3-Chloro-4-methylphenyl)-2,2,2-trifluoroethan-1-amine (CAS 886370-21-4)
- 1,2,5-Thiadiazole-3,4-diamine (CAS 55904-36-4)
- Uridine-2-13C-1,3-15N2 (CAS 369656-75-7)
- 5-(Benzyloxy)-2-bromobenzonitrile (CAS 693232-07-4)
- tert-Butyl (S)-4-(2-(4-chloro-2-fluorophenyl)-2-methylbenzo[d][1,3]dioxol-4-yl)piperidine-1-carboxylate (CAS 2401894-43-5)
- (R)-1-(tert-butoxycarbonyl)-2-(2,4-dichlorobenzyl)pyrrolidine-2-carboxylic acid (CAS 959576-44-4)
- cis-5-(tert-butoxycarbonylamino)tetrahydropyran-2-carboxylic acid (CAS 1993226-94-0)
- Ethyl (2’-Hydroxy-4’-benzyloxybenzoyl)acetate (CAS 1076198-06-5)
- 3-Chloro-4-ethoxybenzaldehyde (CAS 99585-10-1)
- Neuropeptide Y (1-24) amide (human, rat) (CAS 131448-51-6)
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