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2-Phenylphenol
(Orthophenylphenol or OPP)
Includes its salts Sodium-OPP and Potassium-OPP used as inert ingredients

General Information

• Chemical Class: Antimicrobial Phenol
• Uses: For hard surfaces, agricultural premises and equipment, air deodorization, commercial and institutional premises, medical premises, residential and public access premises (carpet, hard surfaces, crack and crevice treatment), and material preservatives (stains, and paints, metal working fluids, textiles, paper slurries and cement mixtures, glues, and adhesives, and consumer, household and institutional cleaning products). Also postharvest application on citrus and pears.
• Alternatives:
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Class:
• Cancer: OPP: Not likely (8)(3)*, Listed (21); Sodium-OPP: Possible (3) (21)
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Not documented
• Kidney/ Liver Damage: Not documented
• Sensitizer/ Irritant:Yes (8)
• Birth/ Developmental Defects: Not documented

Environmental Effects

• Detected in Groundwater: Not documented
• Detected in Streams: Yes (27)
• Potential Leacher: Not documented
• Toxic to Birds: Not documented
• Toxic to Fish/ Aquatic Organisms: Yes (8)
• Toxic to Bees: Not documented
• Toxic to Mammals: Not documented
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Reregistration Eligibility Decision (RED) signed (7/2006)
• Supporting information:
  • CDC Factsheet: 2-phenylphenol
  • PAN Pesticides Database: (Pesticide Action Network)
• Key Studies: