1898 in science

thumb|140px|The repeating unit within polyethylene in the most stable staggered conformation

Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. They are the most widely occurring nitrogen-containing heterocycles in nature.

liquid state of the element hydrogen

1898–1900 research expedition to Antarctica

nova in the constellation Sagittarius

overview of natural science-related events during the year of 1898

German scientific expedition (1898–1899)

19th-century total solar eclipse