Tacrolimus API Powder IP, Color : White, CAS No. : 99.9

Tacrolimus powder is a white to off-white crystalline substance used primarily as a potent immunosuppressant API (Active Pharmaceutical Ingredient) to prevent organ transplant rejection. It acts as a calcineurin inhibitor, often sold in bulk for pharmaceutical compounding or used in specialized topical preparations for conditions like oral lichen planus.