Also available in 5 mg, 10 mg, 25 mg, 50 mg and bulk. Please contact Fisher for quotes. Beta-Thujaplicinol, a hydroxylated thujaplicinone isolated from western red cedar heartwood, has antiviral activity, inhibits hepatitis B virus replication by blocking viral ribonuclease H activity, and can be used in the study of viral infections. Purity 99.67%