Octylphenol (OP)

Octylphenol (OP) serves as an intermediate in producing phenolic resins and octylphenol ethoxylates. Phenolic resins, primarily used in rubber processing for tire manufacturing, account for 82% of its application. Additionally, it is used in fungicides, nonionic surfactants, and dyestuffs. Octylphenol ethoxylates find use in emulsion polymerization, textile processing, water-based paints, and fungicide.

OP can bioaccumulate in fish, and is toxic to aquatic life. As an endocrine disruptor with estrogenic activity, octylphenol poses a risk to animals and humans. OP is also a reproductive toxin, and can injure the male reproductive system.

Sources

https://doi.org/10.1016/B978-0-12-801028-0.00240-3

https://assets.publishing.service.gov.uk/media/5a7c78c6e5274a559005a192/scho0405biyz-e-e.pdf