Butyraldehyde 2,4-Dinitrophenylhydrazone

Butyraldehyde 2,4-Dinitrophenylhydrazone, also known as DNPH or Brady's reagent, is a yellow to orange crystalline solid that is commonly used in analytical chemistry to test for the presence of carbonyl functional groups in organic compounds. This test, known as the DNPH test, involves adding a small amount of DNPH to a sample and observing the formation of a bright yellow to orange precipitate, indicating the presence of a carbonyl group. The chemical formula for DNPH is C6H6N4O4, and it has a molecular weight of 198.14 g/mol. It is soluble in ethanol and acetone but is insoluble in water. DNPH is a relatively stable compound and can be stored for long periods of time without significant degradation. DNPH is commonly used in quality control and analytical chemistry to identify carbonyl-containing compounds, such as aldehydes and ketones, in a variety of samples, including food, pharmaceuticals, and environmental samples. The DNPH test is a simple and reliable method for detecting these compounds and can be performed quickly and easily in a laboratory setting. In summary, Butyraldehyde 2,4-Dinitrophenylhydrazone is an important chemical reagent used in analytical chemistry to identify carbonyl-containing compounds. Its stability and solubility properties make it a versatile tool for quality control and analytical chemistry applications.