Pyrimidines are heterocyclic six-membered nitrogen-containing carbon ring structures with uracil cytosine and thymine being the basal structures of ribose-containing nucleosides (uridine cytidine and thymidine respectively) or deoxyribose-containing deoxynucleosides and their corresponding ribonucleotides or deoxyribonucleotides.

Dec-9-en-1-ol (9-DECEN-1-OL) is an intermediate in synthetic rubber and is involved in the synthesis of polymers that can be used as energy sources.

Arenobufagin 3-hemisuberate is a natural product.