| http://www.w3.org/ns/prov#value | - synthetic esters and ethers, especially of fatty acids, for instance the oils of formulae R1COOR2 and R1OR2 in which R1 represents a fatty acid residue containing from 8 to 29 carbon atoms and R2 represents a branched or unbranched hydrocarbon-based chain containing from 3 to 30 carbon atoms, for instance Purcellin oil, isononyl isononanoate, isopropyl myristate, 2-ethylhexyl palmitate, 2-octyldod
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