A. J. Verbiscar
Feb 1, 1964
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Journal
Journal of Organic Chemistry
Abstract
Unlabeled 4',5'-diiodo-4-aminofluorescein was obtained by treating a solution of 4-aminofluorescein in 1N HCl with two equivalents of iodine monochloride. Exchange reactions of Nal/sup 131/ with 4',5'-diiodo-4- aminofluorescein were accomplished in high radioactive yield by mixing the materials in acetic acid overnight. Warming was necessary to effect solution. (P.C.H.)