N. I. Sitak

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Aminoantipyrine (I) is an intermediate in the manufacture of Analgin. To prepare the latter, I is methylated with a mixture of formaldehyde and formic acid, the amount of which is charged according to the analysis of I. Determination of I in the plant laboratory of the Khar'kov Krasnaya Zvezda pharmaceutical chemistry plant is carried out by the(More)
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