Prophobilinogen in urine produces pink colour with which of the following reagent?
Prophobilinogen, urobilinogen and stercobilinogen reacts with Ehrlich's aldehyde reagent to form red colour. Ref: Vasudevan Biochemistry, 4th Edition, Pages 256, 493
Fouchet's reagent
Benedict's reagent
Sodium nitropruside
Ehrlich's aldehyde reagent