osazone

(redirected from dihydrazone)
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o·sa·zone

(ō'să-zōn),
The compound formed by certain sugars (for example, glucose, galactose, fructose) with excess hydrazines, possessing two hydrazones on carbons 1 and 2 instead of only one at C-1, as in the ordinary hydrazone, thus, RNH-N=CR'-CR"=N-NHR"'; osazones formed with phenylhydrazine (phenylosazones) are used to characterize and identify certain sugars.
Synonym(s): dihydrazone

osazone

(ō′sā-zōn)
Any of a series of compounds resulting from heating sugars with acetic acid and phenylhydrazine.
References in periodicals archive ?
The cross-linking forming the dihydrazone derivative between the oxidized alginate chains is responsible for the regular structure of globular chains.
The aim of this work is to prepare and spectral study a ferrocenyl ligand derived from condensation of 1,1`-diacetylferrocene dihydrazone with salicylaldehyde.
Synthesis and Characterization of Ligand 1,1`-Diacetylferrocene dihydrazone was prepared by reacting 1,1`-diacetyl-ferrocene, dissolved in a small amount of dry ethanol, with an excess of hydrazine hydrate while stirring under nitrogen.
1) was prepared by addition of salicylaldehyde to 1,1`-diacetylferrocene dihydrazone in ethanol under reflux for 8 h.