osazone


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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 ?
A number of biochemical tests including Fehling's Solution Test, Benedict's test [23], Combur Test [11], Molisch Test, Iodine Test [24], Tollen Test, Barfoed's Test, Osazone Test and Seliwanoff's Test were performed by using the reported methods (Fig.
A number of chemical tests including Molisch Test, Iodine Test, Benedict's Test, Tollen Test, Barfoed's Test, Fehling's solution Test, Osazone Test, Hydrolysis Test and Seliwanoff's Test have been found to be positive and strongly support for the presence of reducing sugars and other carbohydrates in the water extracts of M.
Osazone test is performed by adding 10 drops of glacial acetic acid to 5 ml of sugar solution in a test tube, then add a knife point of phenyl hydrazine hydrochloride and double amount of sodium acetate crystals, mix them and filter the solution in another test tube.
In our study, all 70 cases were subjected to osazone test and classified as osazone test positive for lactose, glucose or maltose.