Product name: Ethyl (ethoxymethylene)cyanoacetate
CAS No.: 94-05-3
EC No.: 202-299-5
Synonyms: Ethyl 2-cyano-3-ethoxyacrylate, EMCAMolecular Formula: C8H11NO3
Molecular Weight: 169.18
SMILES: CCO\C=C(/C#N)C(=O)OCC
Typical Physical & Chemical Properties
| Parameter | Typical Value |
|---|---|
| Boiling Point | 190 ~ 191 ℃ (30 mmHg) |
| Flash Point (Closed Cup) | 130 ℃ |
| Solubility | Soluble in methanol, ethanol, chloroform; slightly soluble in cold water |
| Stability | Stable under normal ambient conditions. Avoid contact with strong acids, strong alkalis and strong oxidants |
| Odor | Slight characteristic organic odor |
Quality Specifications
| Item | Specification | Test Method |
|---|---|---|
| Appearance | White to pale yellow crystalline solid | Visual Inspection |
| Assay (GC) | ≥98.0 % | Gas Chromatography |
| Melting Point Range | 49 ~ 53 ℃ | Capillary Melting Point Method |
| Loss on Drying | ≤0.50 % | Vacuum Drying Gravimetry |
| Free Acid | ≤0.20 % | Potentiometric Titration |
| Residue on Ignition | ≤0.10 % | Gravimetry |
Product Characteristics
- Important electrophilic building block for organic synthesis, containing cyano group, reactive carbon-carbon double bond and ester functional group.
- Excellent raw material for manufacturing pyrimidine, pyridine and quinoline derivatives.
- Key intermediate for synthesis of quinolone antibacterial agents, fine chemicals and dyestuff intermediates.
Applications
Pharmaceutical intermediate for quinolone antibiotics and heterocyclic drug synthesis
Raw material for agrochemical intermediatesOrganic synthesis building block for fine chemical & pigment production
Starting material in Gould-Jacobs cyclization reaction
Handling & Storage
Store in tightly sealed fibre drums, kept in cool, dry, well-ventilated warehouse.
Protect from direct sunlight, moisture and excessive high temperature.Separate from strong oxidants, strong acids and strong bases.
Avoid dust inhalation, prolonged skin and eye contact. Wear dust mask, chemical resistant gloves and safety goggles during operation.
Shelf life: 24 months under recommended storage conditions.
Packaging
25 kg fibre drum with inner PE liner
This substance is irritant to skin, eyes and respiratory tract; may trigger allergic skin or respiratory reactions. Prevent dust formation during operation.
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