| http://www.w3.org/ns/prov#value | - A compound of the formula wherein R represents aryl or ar (1ower)alkyl; the aryl and the arof ar(lower)alkyl being of the formula Rir each of R R R R and R is a member of the group hydrogen, straight chain(loWe-r)a1kyl, aryl or ar(lower) alkyl; or together with the member bound to the same carbon atom, polymethylene having from 4 to 6 carbon atoms; the aryl and the an of ar(lower)alkyl being of th
|
