ng of hydrogen, hydroxy, and methoxy; --R is an alkyl group having from about 6 to about 24 carbon atoms; and --R1 is selected from the group consisting of hydrogen, hydroxy, alkyl esters of hydroxy having from about 1 to about 5 carbon atoms, alkyl having from about to about 5 carbon atoms, and alkoxy having from about 1 to about 5 carbon atoms;