2-phenylphenol

2-Phenylphenol (CAS 90-43-7), also known as OPP, Torsite, and Rotoline, is a broad-spectrum antimicrobial active used across food contact, agricultural, and industrial preservation applications. It functions primarily as a biocide and fungicide, controlling microbial and fungal growth on surfaces, produce, and in formulated products. In post-harvest agriculture, it is applied as a surface treatment.

This treatment is used on citrus, pears, and other fresh produce to suppress mold and extend shelf life during storage and transit. Pharmaceutical manufacturers use it as an intermediate in synthesizing active compounds. It also serves as a preservative component in topical and veterinary formulations. Personal care formulators incorporate it into disinfectant soaps, surface sanitizers, and cosmetic preservative systems.

In flavor and fragrance applications, it contributes a faint phenolic note and is recognized under FEMA 3959 for use in approved flavoring contexts. It is supplied as a white crystalline powder. Technical and food-grade specifications are the most commonly available, with material sourced to meet regulatory requirements for food contact and agricultural use in relevant markets.

Purity grades typically range from 98% to 99%+, with documentation available to support compliance in regulated end-use categories. It meets various global standards for industrial and chemical safety.