1-Naphthyl Phosphate Disodium Salt (Extrapure, CAS 2183-17-7) is a high-purity biochemical reagent widely used in enzyme assays, phosphate detection, and molecular biology research. Supplied as 250 mg, this disodium salt is ideal for alkaline phosphatase activity studies, chromogenic substrate reactions, and biochemical assays requiring sensitive phosphate detection.

Its extrapure quality ensures minimal contamination and reliable, reproducible results in laboratory research, enzyme kinetics, and protein studies.