EM 5519, formerly known as Safracin B, is an antitumor antibiotic. References: Ikeda Y, Idemoto H, Hirayama F, Yamamoto K, Iwao K, Asao T, Munakata T. Safracins, new antitumor antibiotics. I. Producing organism, fermentation and isolation. J Antibiot (Tokyo). 1983 Oct;36(10):1279-83. PubMed PMID: 6417094.

纯度：≥98%

CAS：87578-99-2