{HEAD ~ The acid function} may also be converted to an alcohol, aldehyde or {TAIL ~ ketone} or derivatives thereof, or may be reduced to CH3 
{ HEAD ~ The acid function } may also be converted to an alcohol , aldehyde or { TAIL ~ ketone } or derivatives thereof , or may be reduced to CH3
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH