Give one use of acetonitrile.

Explanation

**Step-by-Step Solution:**

1. **Identify Acetonitrile**: Acetonitrile is a chemical compound with the formula CH₃CN. It is a colorless liquid that is highly polar and has a high dielectric constant.

2. **Research Uses of Acetonitrile**: Acetonitrile has various applications in different industries. Some of the notable uses include:
- **Pharmaceutical Industry**: It is used as a solvent in the synthesis of pharmaceuticals.
- **Perfume Industry**: It is utilized in the formulation of perfumes.
- **Rubber Production**: Acetonitrile is used in the production of rubber products.
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