ninhydrin

ninhydrin (nin-hI´drin)

2,2-Dihydroxy-1,3-indanedione;reacts with free amino acids to yield CO2, NH3, and an aldehyde, the NH3 produced yielding a colored product (diketohydrindylidene-diketohydrinamine, a bi-indanedione derivative). See also ninhydrin reaction.

 

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