Purity >95%  

Synonyms: Sirolimus, INN 

An immunosuppressant drug used to prevent rejection in organ transplantation, and especially useful in kidney transplants. Rapamycin is a macrolide first discovered as a product of the bacterium Streptomyces hygroscopicus in a soil sample from an island called Rapa Nui, better known as Easter Island.¹

1. D. I. Pritchard, Sourcing a chemical succession for cyclosporin from parasites and human pathogens. Drug Discovery Today, 2005, 10, 688–691.

NOTE: >100mg POA