2－Methylthio-3(or5or6)-methylpyrazine（CAS#2882-20-4）
| 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. |
| UN IDs | UN 3334 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29339900 |
Introduction
2-Methylthio-3-methylpyrazine is an organic compound. The following is an introduction to its nature, use, preparation method and safety information:
Quality:
1. Appearance: 2-methylthio-3-methylpyrazine is usually white solid or crystalline, and may also be in powder form.
2. Solubility: It is soluble in many organic solvents such as chloroform, benzene, and ethanol.
Use:
1. Pesticides: 2-methylthio-3-methylpyrazine can be used as fungicides and insecticides, and has a good control effect on fungi and pests on some crops.
2. Marine chemistry: This compound can also be applied to marine research to study the behavior and physiological responses of marine organisms.
Method:
2-Methylthio-3-methylpyrazine can be synthesized by the following steps:
1. Condensate methyl thiocyanate and acetone under appropriate conditions to form Kawasaki heterocycles.
Then, the Kawasaki heterocycle is reacted with formic acid to give 2-methylthio-3-methylpyrazine.
Safety Information:
1. 2-Methylthio-3-methylpyrazine has an irritating effect and should be avoided from contact with the skin and eyes.
2. Appropriate protective equipment such as gloves and goggles should be worn when using or handling.
3. If inhaled or ingested, seek medical attention immediately.
