- Appearance:Yellow brown solid
- Purity:>98% by HPLC
*Please inquire the availability for this product. (-)-Rugulosin is the less common optical isomer of the mycotoxin, (+)-rugulosin, which was first isolated from Myrothecium verrucaria in 1968. The isomers appear not to be co-produced but both occur widely in several fungal genera. (-)-Rugulosin has been shown to be antiviral. (-)Rugulosin is the less studied of the isomers and its role as a mycotoxin is implied rather than established. There are few comparative studies of the relative potency of the isomers.