4-Bromo-2-methylpyridine（CAS# 22282-99-1)
| Risk Codes | R22 – Harmful if swallowed R37/38 – Irritating to respiratory system and skin. R41 – Risk of serious damage to eyes R36/37/38 – Irritating to eyes, respiratory system and skin. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/39 - S36 – Wear suitable protective clothing. |
| UN IDs | NA 1993 / PGIII |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Class | IRRITANT |
Introduction
2-Methyl-4-bromopyridine is an organic compound. The following is an introduction to the properties, uses, preparation methods and safety information of 2-methyl-4-bromopyridine:
Quality:
- 2-Methyl-4-bromopyridine is a colorless to pale yellow solid.
- 2-Methyl-4-bromopyridine is almost insoluble in water but soluble in organic solvents.
Use:
- 2-Methyl-4-bromopyridine can be used as a raw material and reagent in organic synthesis.
Method:
- 2-Methyl-4-bromopyridine can be obtained by reacting 2-methyl-4-pyridine methanol with phosphorus tribromide.
- During the reaction, 2-methyl-4-pyridine methanol and phosphorus tribromide were added to the reaction vessel, the reaction mixture was heated, and then 2-methyl-4-bromopyridine was purified by distillation and other methods.
Safety Information:
- 2-Methyl-4-bromopyridine can cause irritation of the eyes, skin, and respiratory tract and should be avoided when used.
- Wear protective eyewear, gloves and respiratory protection when using.
- It is a toxic substance and should be properly stored and kept away from fire sources and oxidizing agents.
- If 2-methyl-4-bromopyridine is inhaled or ingested, seek medical attention immediately.
