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The preparation of iodine-containing x-ray contrast substances. I. 3:5-DI-iodo-4-Pyridone-N-Acetic acid (“perabrodil”)

✍ Scribed by Baker, Wilson ;Briggs, A. S.

Publisher
Wiley (John Wiley & Sons)
Year
1943
Weight
403 KB
Volume
62
Category
Article
ISSN
0368-4075

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✦ Synopsis

excessively yith incrensitig pk, cnusing n . consequent high l h i k reading on the instrument3. 4 1 1 view of this i t wns decided to work nt n pII of 4.0, ol)tiiineil iiutoiiint.icnlly by dissolving 0.1 g. of inngncsiuni alloy in 5 nil. of 33% ncetic ncid.

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bath (yield 91 g.). The mother-liquor is now concentrnted to nbout 1 litre, filtered after the nddition of charcoal (2 g.), cooled, and the product collected as before (yield 14 6.). Further concentrat.ion of the mother-liquor to about 200 C.C. (1 g, of charcoal) gave another 26. of the compound. Th