WS 009A is an endothelin receptor antagonist; from Streptomyces sp. No. 89009. References: Yang X, Chen W. [The effect of ETA receptor antagonist WS009A on the pathogenesis of hypoxic pulmonary hypertension in rats]. Hua Xi Yi Ke Da Xue Xue Bao. 2001 Sep;32(3):409-12. Chinese. PubMed PMID: 12536579.

纯度：≥98%

CAS：136286-49-2