Red Yeast Rice Extract Details Product Name: Red Yeast Rice Extract Herb Source: Monascus Purpureus Used Part: Seed Active Ingredient: Monacolin K ( Lovastatin ) Appearance: Red PowderSpecification: Monacolin K 0.5%, 1.0%, 1.5%, CAS#: 75330-75-5 Molecular Formula & Molecular Weight: C24H36O5; 404.54 Lovastatin Structural Formula: What Is Red Yeast Rice Extract ?  In China, red yeast rice powder has been used …