For the chemists reading, the newly detected molecular fragments included aliphatic, (hetero)cyclic ester/alkenes, ethers/ethyl and, tentatively, nitrogen- and oxygen-bearing compounds.
On Earth, these same molecules are involved in the chains of chemical reactions that ultimately lead to the more complex molecules that are essential for life.
cm0002 in space
Cassini proves complex chemistry in Enceladus ocean
https://www.esa.int/Science_Exploration/Space_Science/Cassini-Huygens/Cassini_proves_complex_chemistry_in_Enceladus_ocean