The esters preferably have a low boiling point, particularly below {HEAD ~ 100° C.} at {TAIL ~ normal pressure} 
at
The esters preferably have a low boiling point , particularly below { HEAD ~ 100 ° C. } at { TAIL ~ normal pressure }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL