Brady's reaction. Precipitate from a positive test for a carbonyl compound with Brady's reagent (2,4-dinitrophenylhydrazine sulphate in methanol) in chemical analysis. When added to a sample containing the organic carbonyl group (aldehydes or ketones),a characteristic precipitate of 2,4-dinitrophenylhydrazone is formed. This may be coloured from yellow (as here) to deep red,depending on the carbonyl | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 5092 px × 3445 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |