Indoxyl sulfate is a metabolite of tryptophan, showing adverse effects on bones and the central nervous system, having been most frequently implicated as a contributor to renal disease progression and vascular disease

487-94-5

C8H7NO4S

213.21

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years