The group present in prontosil is
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2. Prontosil was the first commercially available antibiotic.
3. In vivo, it breaks down to release sulfanilamide.
The Correct Option is A
Approach Solution - 1
- This was the active component that metabolizes to sulfanilamide.
- Structure: Contains -N=N- linkage. Key features: - Azo dyes have -N=N- linkage.
- Options 2-4 don't exist in prontosil. Thus, the correct answer is (1).
Approach Solution -2
Prontosil is a well-known synthetic drug that was historically used as one of the first antibacterial agents. It is classified as a **sulfonamide drug** and is also recognized as a type of **azo dye**.
A key structural feature of Prontosil is the presence of the **azo group**, which is represented by the linkage:
–N=N–
The azo group is formed by two nitrogen atoms connected via a double bond, and it typically connects two aromatic rings in azo compounds. This group is responsible for the vivid color of azo dyes and also plays a crucial role in the biological activity of Prontosil.
Final Answer:
Azo group (–N=N–)
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