3 5-difluorobenzaldehyde（CAS# 32085-88-4)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | 36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S37/39 – Wear suitable gloves and eye/face protection |
| UN IDs | UN 1989 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| HS Code | 29124990 |
| Hazard Note | Irritant |
| Hazard Class | 3 |
| Packing Group | III |
Introduction
3,5-difluorobenzaldehyde is an organic compound with the chemical formula C7H4F2O. The following is a description of the properties, uses, preparation and safety information of the compound:
Properties: 3,5-difluorobenzaldehyde is a colorless to light yellow solid with a special phenone odor. It has a density of 1.383g/cm³, a melting point of 48-52°C, and a boiling point of 176-177°C. 3,5-difluorobenzaldehyde is insoluble in water, but soluble in organic solvents such as ethanol, ether, and benzene.
Uses: 3,5-difluorobenzaldehyde is commonly used as an intermediate in organic synthesis. It can be used to synthesize various fluorine-containing organic compounds, especially for chemical reactions that introduce fluorine atoms into organic molecules. In addition, it can also be used as a synthetic intermediate for drugs, pesticides and dyes.
preparation method: the preparation method of 3,5-difluorobenzaldehyde can be obtained by reacting 3,5-difluorobenzyl methanol with an acid aldehyde reagent (such as trichloroformic acid, etc.). Specific synthetic methods can refer to the Organic Synthesis Handbook and related literature.
Safety information: 3,5-difluorobenzaldehyde is a chemical and needs to be used safely. It is irritating and corrosive and may cause damage to the eyes, skin and respiratory system. Appropriate personal protective equipment such as goggles, gloves and face shields should be worn during use. Follow laboratory safety practices and store, handle and dispose of the compound properly. In case of accidental contact or ingestion, seek medical attention immediately and provide the necessary information to the doctor.
