1 2 3 4 5-Pentamethylcyclopentadiene（CAS# 4045-44-7)
| Risk Codes | 10 – Flammable |
| Safety Description | 16 – Keep away from sources of ignition. |
| UN IDs | UN 3295 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 9-23 |
| HS Code | 29021990 |
| Hazard Class | 3 |
| Packing Group | III |
Introduction
1,2,3,4,5-Pentamethylcyclopentadiene (also known as pentaheptadiene) is an organic compound. The following is an introduction to its properties, uses, manufacturing methods and safety information:
Quality:
1,2,3,4,5-Pentamethylcyclopentadiene is a colorless liquid with a special odor. It is less dense, insoluble in water, and soluble in common organic solvents.
Use:
1,2,3,4,5-Pentamethylcyclopentadiene has a wide range of applications in the field of chemistry. It can be used as a starting material and intermediate in organic synthesis for the synthesis of other organic compounds.
Method:
1,2,3,4,5-Pentamethylcyclopentadiene can be synthesized by a variety of methods. Common preparation methods include the following:
Reaction through cyclopentene: cyclopentene and methylation reagents (such as methyl bromide) are used to react under alkaline conditions to generate 1-methylcyclopentene, and then 1,2,3,4,5-pentamethylcyclopentadiene is synthesized through methylation reaction.
A carbon-carbon bond formation reaction catalyzed by a metal catalyst.
Safety Information:
1,2,3,4,5-pentamethylcyclopentadiene has certain dangers, and it is necessary to pay attention to safety when using it. Here are some of the possible security risks:
It is a flammable liquid and should be kept away from open flames and high temperature sources.
Avoid inhaling its vapors, use them in a well-ventilated area, and use appropriate personal protective equipment (e.g., respiratory protection).
It can react violently with strong oxidizing agents and strong acids, resulting in a fire or explosion.
Please operate with caution when using and handle it in accordance with the relevant safety operation procedures.
