Abstract
1. Frogs injected with 3-nitrophenol excreted 85–93% of the administered dose within 17h; 70–90% dose was metabolized.
2. Metabolites identified comprise 3-nitrophenyl glucuronide (57% dose), 3-nitro-phenyl sulphate (24% dose), and 3-acetamidophenyl sulphate (2% dose). Traces of the following metabolites were found: 3-acetamidophenyl glucuronide, 3-acetamidophenol, 4-nitrocatechol, nitroquinol, 4-nitrocatechol sulphate and nitroquinol sulphate.