dinitrophenylhydrazine test

di·ni·tro·phen·yl·hy·dra·zine test

a screening test for maple syrup urine disease; the addition of 2,4-dinitrophenylhydrazine in HCl to urine gives a chalky white precipitate in the presence of ketoacids.

di·ni·tro·phen·yl·hy·dra·zine test

(dī'nī-trō-fē'nil-hī'dră-zēn test)
A screening test for maple syrup urine disease; the addition of 2,4-dinitrophenylhydrazine in HCl to urine gives a chalky white precipitate in the presence of ketoacids.