"Pyrimidines" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates.
Below are MeSH descriptors whose meaning is more general than "Pyrimidines".
Below are MeSH descriptors whose meaning is more specific than "Pyrimidines".
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