424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
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9.1 | DF | IN VIVO DIAGNOSIS OR IN VIVO TESTING {7} |
9.4 | DF | .~ X-ray contrast imaging agent (e.g., computed tomography, angiography, etc.) {5} |
9.45 |  | .~.~ Halogenated benzene ring containing {3} |
9.451 | DF | .~.~.~> Two or more halogenated benzene rings in the same compound {2} |
9.454 | DF | .~.~.~> Three or more amide groups are attached directly to the same benzene ring by nonionic bonding |
9.455 | DF | .~.~.~> Carbonyl of a carboxylic acid or salt thereof attached directly to the benzene ring |