Indirubin Powder

Indirubin Powder (CAS 479-41-4) is an anti-leukemia active ingredient originally isolated from Indigofera tinctoria, historically used as an indole anti-tumor agent that inhibits transplanted animal tumors and destroys leukemia cells, reportedly acting by blocking DNA polymerase rather than directly on protein synthesis. Produced in-house by Shaanxi Virgin Pharmaceutical Co., Ltd. at pharmaceutical grade, it is certified to ChP and USP standards and sold into North America, Central/South America, Western and Eastern Europe, Australasia and Asia.