2-Ethoxy-4-nitrobenzonitrile CAS 642081-59-2
| CAS No. | 642081-59-2 |
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-Ethoxy-4-nitrobenzonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2-Ethoxy-4-nitrobenzonitrile (CAS 642081-59-2) is a high-purity analytical reference standard with the molecular formula C9H8N2O3 and a molecular weight of 192.17 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Ethoxy-4-nitrobenzonitrile 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.
Physical & Chemical Properties
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 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.) | 1985 |
| Nitrogen Atoms | 2 |
Related Ethoxy Standards
- 4-Ethoxy-3-nitrobenzonitrile (CAS 136366-43-3)
- 5-Ethoxy-2-nitrobenzonitrile (CAS 1415819-87-2)
- 2-Ethoxy-5-nitrobenzonitrile (CAS 29669-41-8)
- 3-[Ethoxy(ethyl)phosphoryl]prop-2-enoic acid (CAS 1086275-08-2)
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- 3-Ethoxy-4-methoxy-1,2,5-thiadiazole 1,1-dioxide (CAS 1379185-66-6)
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Recommended Standards
- 2-Benzylidenemalonic acid (CAS 584-45-2)
- 2-Amino-5-cyano-6-methoxypyridine-3-carboxamide (CAS 89977-58-2)
- 2-Ethyl[1,3]oxazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-28-3)
- 2-Amino-2-(benzo[d]isoxazol-3-yl)acetic acid (CAS 57148-97-7)
- Rel-(1S,2S)-2-butoxy-N,N,N-trimethylcyclopropan-1-aminium iodide (CAS 64048-20-0)
- 3-Bromo-5-chlorosalicylaldehyde (CAS 19652-32-5)
- 1-Propanone, 2-methyl-2-(4-nitrophenyl)-1-(4-phenyl-1-piperazinyl)- (CAS 898640-71-6)
- Dihydrodigoxin (Mixture of Diastereomers) (CAS CATO-C4X-193216)
- Dibutyl glutarate (CAS 6624-57-3)
- 29957-59-3 Boron tribromide dimethyl sulfide complex Boron tribromide dimethyl sulfide complex solution Dimethyl sulfide-tribromoborane Tribromoborane-methyl sulfide (CAS 29957-59-3)
- (2-Bromo-6-nitrophenyl)methanamine hydrochloride (CAS 1260505-80-3)
- Ethyl 2-(furan-2-yl)-4-methyl-6-oxo-1,6-dihydropyrimidine-5-carboxylate (CAS 941190-95-0)
- N-(4-ethoxyphenyl)piperidin-4-amine (CAS 886507-14-8)
- Bonemarrow-Derived Mesenchymal Stem Cells Affinity Peptide trifluoroacetate salt (CAS 683750-83-6)
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