Patent ID: 6923950

Claim:
A compound having the general formula X-L-S wherein: the S moiety is a pyranose; the X moiety is, a substituted or unsubstituted C 1 -C 8 alkyl, alkoxy, alkylthio, alkenyl, alkylaryl, alkylamino, alkylamido, amido, or arylamido, in which at least one atom is substituted by a radio-opacifying atom of an element with an atomic number of approximately Z=35 to approximately Z=74, and the L moiety is unsubstituted or substituted, and is a C 1 -C 8 alkyl, alkoxy, alkylthio, alkenyl, alkylaryl, alkylamino, alkylamido, amido, or arylamido, and is bonded to the S moiety and to the X moiety.