Compounds having the structure
(Z)̵-COO-L-CO₂M
wherein (Z)̵-COO is the residue of an iodinated aromatic acid;
M is H, a cation, (̵CH₂CH₂O)̵mH, and (̵CH₂CH(OH)O)̵pH;
m is an integer from 1 to 150;
p is an integer from 1 to 50; and
L is one or more divalent linking groups selected from alkylene, cycloalkylene, arylene, arylenealkylene, and alkylenearylene are particularly useful as wetting agents in x-ray imaging compositions and in methods for x-ray diagnostic imaging.
具有以下结构的化合物
(z)̵-coo-l-co₂m
其中,(Z)̵-COO 是
碘化
芳香酸的残留物;
M 是 H、阳离子、(̵CH₂CH₂O)̵mH 和(̵CH₂CH(OH)O)̵pH;
m 是 1 到 150 之间的整数;
p 是 1 至 50 的整数;以及
L 是一个或多个选自亚烷基、环烷基、芳基、亚芳基烷基和亚烷基芳基的二价连接基团。