**Othmar Zeidler**
**Definition**
Othmar Zeidler was an Austrian chemist best known for synthesizing the first sample of the insecticide DDT in 1874.
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**Othmar Zeidler**
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**Othmar Zeidler**
**Definition**
Othmar Zeidler was an Austrian chemist best known for synthesizing the first sample of the insecticide DDT in 1874.
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**Othmar Zeidler**