3-Ethynylbenzaldehyde(CAS: 77123-56-9)

3-Ethynylbenzaldehyde is a chemical compound with the CAS number 77123-56-9. It is an aromatic aldehyde with the chemical formula C9H6O. The compound features a benzene ring with an ethynyl group (-C≡CH) attached to it. It is a clear, colorless liquid with a distinctive odor.

3-Ethynylbenzaldehyde is primarily used in the synthesis of other organic compounds, particularly in the pharmaceutical and fine chemical industries. It serves as an intermediate in the production of dyes, plastics, and other chemical products. Additionally, it is utilized in research for its reactivity and as a starting material for various chemical transformations.

3-Ethynylbenzaldehyde is generally safe when handled with appropriate precautions. However, it can be toxic if ingested or inhaled. Skin contact should be avoided, and proper ventilation is necessary during handling. Protective gloves and safety glasses are recommended. In case of exposure, seek medical advice if symptoms persist.

3-Ethynylbenzaldehyde should be stored in a tightly sealed container to prevent evaporation and contamination. It should be kept away from heat, open flames, and other ignition sources. Store in a cool, dry place, away from direct sunlight and moisture. The storage temperature should not exceed 25°C (77°F).