Question

Which of the following is Non-ester Pyrethroid?

• A. Etofenprox
• B. Allethrin
• C. Cypermethrin
• D. Deltamethrin

Hint:

Etofenprox is widely used in mosquito control programs due to its low mammalian toxicity.

Answer 1

The Correct Option is A

Pyrethroid classification:
Etofenprox:
Ether pyrethroid (no ester bond)
More photostable
Ester pyrethroids:
Allethrin, Cypermethrin, Deltamethrin
Contain ester functional group