摘要:
Certain 3,5-disubstituted-2,4,6-triiodoanilides of polyhydroxy-monobasic acids are useful as x-ray contrast agents. Representative of this class of compounds is the compound 3-gluconamido-2,4,6-triiodo-N-methyl-5-(N-methyl-acetamido)-benzamide and the compound 3-gluconamido-5-[N-(2-hydroxyethyl)acetamido]-2,4,6-triiodo-N-methylbenzamide.
摘要:
Water soluble, substantially nontoxic salts of compounds of the formula:CF.sub.3 Rwherein R is --SO.sub.3 H, --SO.sub.2 NH.sub.2 or --PO.sub.3 H.sub.2, are useful for obtaining fluorine magnetic resonance images of body organs and tissues. Illustrative salts of such compounds include sodium trifluoromethane sulfonate, N-methylglucaminium trifluoromethanesulfonate and N-methylglucaminium trifluoromethanesulfonamide.
摘要:
Esters of certain 2,4,6-triiodobenzoic acid derivatives are useful as X-Ray contrast media. Representative compounds are the ethoxymethyl esters of acetrizoic, iothalamic and iodobenzamic acids.
摘要:
Water soluble, substantially nontoxic salts of compounds of the formula:CF.sub.3 Rwherein R is --SO.sub.3 H, --SO.sub.2 NH.sub.2 or --PO.sub.3 H.sub.2, are useful for obtaining fluorine magnetic resonance images of body organs and tissues. Illustrative salts of such compounds include sodium trifluoromethane sulfonate, N-methylglucaminium trifluoromethanesulfonate and N-methylglucaminium trifluoromethanesulfonamide.
摘要:
Ethylene is polymerized in the vapor phase in a stirred bed reactor. The reactor employed is vertically aligned and has a centrally positioned cored draft tube therein. An auger circulates polymer solids through the draft tube while coolant is circulated there through to remove the heat of polymerization.