Thermo Scientific™ 3,5-Dinitrosalicylic acid 98%

3,5-Dinitrosalicylic acid (DNS) is a nitro-substituted derivative of salicylic acid commonly used as a colorimetric reagent for the quantitative determination of reducing sugars. When heated with a sugar solution under alkaline conditions, DNS is reduced to 3-amino-5-nitrosalicylic acid, forming a reddish-brown complex measurable by UV-Vis spectrophotometry.

With a purity of ≥98% and titration value of ≥97.5%, this yellow crystalline powder is ideal for use in enzyme assays, biochemical studies, and analytical chemistry protocols, particularly in carbohydrate quantification and food chemistry.

Key Features

• ≥98% purity
• Standard reagent for reducing sugar determination
• Appears as yellow crystalline powder
• Reliable performance in UV-Vis assays and colorimetric tests
• Supplied in sealed glass bottles for stability
• GHS07 classified (irritant) — use with appropriate PPE

Applications

• Quantitative detection of reducing sugars (e.g., glucose, maltose, lactose)
• Colorimetric reagent in DNS assay
• Enzyme activity assays involving amylase, cellulase, and other carbohydrases
• Food and beverage sugar content analysis
• Biochemistry and carbohydrate metabolism research

Chemical & Physical Properties

Available Packaging

Thermo Scientific™ 3,5-Dinitrosalicylic Acid, 98% is a high-purity reagent essential for the quantitative analysis of reducing sugars and biochemical enzyme activity assays. Its consistent performance and compatibility with standard protocols make it a trusted tool in biotechnology, food science, and analytical laboratories.