A NEW REAGENT FOR THE HISTOCHEMICAL DEMONSTRATION OF ACTIVE CARBONYL GROUPS. THE PREPARATION OF 2-HYDROXYNAPHTHALENE CARBOXYLIC AND SULFONIC ACID HYDRAZIDES1

Abstract
The prepn. of 5 acid hydrazides is given. 2-Hydroxy-3-naphthoic acid hydrazide was found to be the most convenient to prepare and to be the most suitable for the histo- chemical reaction with steroidal carbonyl groups.
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