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CAS 3318-43-2 — Indoxyl phosphate disodium salt

Indoxyl phosphate disodium salt is a chromogenic substrate used in enzyme assays, particularly for alkaline phosphatase detection. It is a stable, water-soluble compound that produces a visible indigo color upon enzymatic cleavage. Available in powder form with a molecular weight of 257.09 g/mol, it has the CAS number 3318-43-2 and molecular formula C8H6NNa2O4P. Store at -15 to -20 °C. Molekula supplies Indoxyl phosphate disodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.