5-Bromo-2-chloropyridine（CAS# 53939-30-3)
| 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 S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. |
| WGK Germany | 3 |
| TSCA | T |
| HS Code | 29333990 |
| Hazard Note | Irritant |
| Hazard Class | IRRITANT, IRRITANT-H |
Introduction
5-Bromo-2-chlorodyridine (5-Bromo-2-chlorodyridine) is an organic compound with the chemical formula C5H3BrClN.
Its main properties are as follows:
-Appearance: Colorless to light yellow crystal
-melting point: 43-46 ℃
-Boiling point: 209-210 ℃
-Solubility: slightly soluble in water, soluble in common organic solvents such as ethanol, dimethylformamide
5-Bromo-2-chlorostyridine has a wide range of applications in organic synthesis, and is commonly used in the preparation of pyridine derivatives, such as drugs and pesticides. It can also be used as a ligand for the synthesis of organometallic complexes.
In the preparation method, 5-Bromo-2-chloropyridine can be obtained by adding chlorination to 2-bromopyridine to undergo a replacement reaction. The specific reaction conditions will be adjusted according to the experimental requirements.
Regarding safety information, 5-Bromo-2-choropyridine is irritating and sensitizing and may be harmful to the eyes, skin, respiratory system and digestive system. Pay attention to protective measures during use and handling, including wearing protective glasses, gloves and breathing masks. At the same time, it should be stored in a dry, well-ventilated place, away from fire and heat sources.
