5β-PREGNAN-3α, 20β, 21-TRIOL 21-ACETATE from Steraloids. For over 60 years, we"ve supplied the finest research institutions, pharmaceutical companies, and law enforcement agencies with over 2,700 different androgens, estrogens, cholestins, progestins, bileacids, hormones, and metabolites synthesized to purified standards for purposes of research.
Steraloids(5α)-PREGNEN-11,20-DIONE(来自Steraloids)。60多年来,我们已经为最优质的研究机构,制药公司和执法机构提供了2700多种不同纯度的雄激素,雌激素,胆甾醇,孕激素,胆汁酸,激素和代谢产物,它们以纯化的标准合成,用于研究目的。