Original plant: Salvia miltiorrhiza bhnge root CAS number: 35825-57-1 Assay (by HPLC): 10%- 99% Molecular Formula: C19H20O3 Molecular Weight: 296.35 Pharmacology: Cryptotanshinone has very strong antibacterial function; it can resist Staphylococcus aureus and its drug-resistance strain strongly in vitro, also it can resist Streptococcus