2 4-Difluorophenylhydrazine hydrochloride（CAS# 51523-79-6)
| Risk Codes | R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 – 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. S36/37 – Wear suitable protective clothing and gloves. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S22 – Do not breathe dust. |
| WGK Germany | 3 |
| HS Code | 29280000 |
| Hazard Class | IRRITANT |
Introduction
2,4-Difluorophenylhydrazine hydrochloride is an organic compound with the chemical formula C6H6F2N2 · HCl. The following is a detailed description of its nature, use, preparation and safety information:
Nature:
-Appearance: Colorless crystalline solid
-Melting point: 151-153°C
-relative molecular mass: 188.59
-Soluble: Soluble in water and some organic solvents, such as ethanol and chloroform
Use:
2,4-Difluorophenylhydrazine hydrochloride is mainly used as a reducing agent and a nitrogen-containing reagent in organic synthesis. It can react with some organic compounds to generate hydrazine derivatives, such as the synthesis of quinones, or for the synthesis of other nitrogen heterocyclic compounds.
Preparation Method:
2,4-Difluorophenylhydrazine hydrochloride can usually be prepared by the reaction of phenylhydrazine and 2,4-difluorobenzaldehyde. The reaction conditions generally include carrying out the reaction in a basic medium with the gradual addition of hydrochloric acid and subsequent precipitation of the product as the hydrochloride salt.
Safety Information:
- 2,4-Difluorophenylhydrazine hydrochloride is a harmful substance, please be careful to avoid inhalation, intake or contact with skin and eyes.
-Wear appropriate protective equipment such as gloves, respirators and goggles during use and operation.
-Please keep it sealed and avoid contact with air, moisture and light.
-please follow the laboratory safety procedures, avoid fire and ignition near the operation.
