Abstract: This invention relates to compounds of the formula: ##STR1## in which: R.sub.1 represents a hydrogen atom or a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical,R.sub.2 represents a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical,A represents a group of the formula: ##STR2## in which: R.sub.3 represents a hydrogen atom, a group of the formula ##STR3## in which R.sub.5 and R.sub.6 represent each a hydrogen atom or a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical, or a group of the formula ##STR4## in which R.sub.7 represents a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical and R.sub.8 represents a hydrogen atom, a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical,a is 0 or 1 and n is an integer from 1 to 5 inclusive,R.sub.4 represents a hydrogen atom or a C.sub.1-4 alkyl radical or a C.sub.1-4 hydroxyalkyl radical, their methyl and ethyl esters and their salts with pharmaceutically acceptable bases.Said compounds are useful as X-ray contrast media.

Abstract: The present invention provides new iodobenzene derivatives which have at least two benzene nuclei and one carboxylic group.These derivatives possess a low toxicity and may be used as X-ray contrast media.

Abstract: The present invention provides new iodo benzene derivatives which have at least two benzene nuclei and one carboxylic group.These derivatives possess a low toxicity and may be used as X-ray contrast media.

Abstract: The present invention provides new iodo benzene derivatives which have at least two benzene nuclei and one carboxylic group.These derivatives possess a low toxicity and may be used as X-ray contrast media.

Abstract: This invention relates to compounds having the following general formula: ##STR1## in which n is an integer from 0 to 4; R.sub.1 and R.sub.2 represent independently from each other a radical of the formula --CONHR.sub.5 in which R.sub.5 is an alkyl radical having 1-4 carbon atoms or a hydroxyalkyl radical having 1-4 carbon atoms or a radical of the formula ##STR2## in which R.sub.6 and R.sub.7 are alkyl radicals having 1-4 carbon atoms; and R.sub.3 and R.sub.4, independently from each other, represent a hydrogen atom or an alkyl radical having 1-4 carbon atoms.Said compounds are useful as X-ray contrast media, particularly for myelography.

Abstract: The present invention provides new iodo benzene derivatives which have at least two benzene nuclei and one carboxylic group.These derivatives possess a low toxicity and may be used as X-ray contrast media.

Abstract: This invention relates to compounds of the formula: ##STR1## in which: R.sub.1 represents a hydrogen atom or a radical of the formula ##STR2## in which R.sub.4 and R.sub.5 represent, independently of each other, a hydrogen atom or a lower alkyl radical,R.sub.2 represents a hydrogen atom or a lower alkanoyl radical,R.sub.3 represents a hydrogen atom, a lower alkyl radical or a lower alkanoyl radical,n is 3 or 4,And their lower alkyl esters and their salts with pharmaceutically acceptable bases.Said compounds are useful as X-ray contrast media.