We supply high quality Tarcolimus with best price ,please feel free to contact us if you want to know more! Chemical Name: Tarcolimus;FK-506 CAS Registry Number: 104987-11-3 Molecular Weight: 804.02(Accurate Mass: 803.481979) Biological Source: Isolated from Streptomyces tsukubaensis Content:>98.5% Physical Form : White crystalline powder Toxicity: LD50 i.p. in mice: >200 mg/kg Package 50g,100g,0.5kg、1kg、5kg、10kg Shelf time: 3 years