Self-contradictory articles from July 2025

Pyridine is a basic heterocyclic organic compound with the chemical formula . It is structurally related to benzene, with one methine group replaced by a nitrogen atom . It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Pyridine is colorless, but older or impure samples can appear yellow. The pyridine ring occurs in many commercial compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. As of 2016, it is synthesized on the scale of about 20,000 tons per year worldwide.

borough in the London Region in England

taxonomic group which contains only one immediately subordinate taxon (according to the referenced point of view)

British criminal duo during 1950s and 1960s

political coalition in Taiwan (Republic of China) favoring Taiwanization and Taiwan independence over Chinese unification

American computer scientist and skydiver

German Resistance member, president of the state bank of the German Democratic Republic (1902–1981)

townland and village in Fingal, Ireland

Italian politician

bark from trees of the genus Cinchona

Player of American football (1937-2019)

law enforcement in foreign countries