Di methyl derivative of {HEAD ~ WS7622A substance}, {TAIL ~ physico chemical properties} of which are as follows: 
Di methyl derivative of { HEAD ~ WS7622A substance } , { TAIL ~ physico chemical properties } of which are as follows :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH