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This reagent (2,4-dinitrophenylhydrazine) is used for Brady's test of carbonyl functionality. It adds to the aldehyde (or ketone) just like any other amination reaction to form a hydrazone. See the related link below.

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10y ago
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10y ago

Practically glucose forms 2,4-diphenyl hydrazone on reacting with 2,4-dnp.

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Q: How does 2 4-dinitrophenylhydrazine react with an aldehyde?
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