CAS Number: 609-99-4
Molecular Weight 228.12
Molecular Formula: C7H4N2O7
IUPAC Name: 2-hydroxy-3,5-dinitrobenzoic acid
Other Names: 3,5-dinitrosalicylic acid, DNS or DNSA
3,5-Dinitrosalicylic acid is an aromatic compound that reacts with reducing sugars and other reducing molecules to form 3-amino-5-nitrosalicylic acid, which absorbs light strongly at 540 nm.
It was first introduced as a method to detect reducing substances in urine and has since been widely used, for example, for quantifying carbohydrates levels in blood.
