Name: Huperzine A CAS: 102518-79-6 Molecular formula: C15H18N2O Molecular weight: 242.32 Specification:98% Function and Usage: It is used for the obstacle of memory , enhance the subject to memorize for specifical purpose and ,memorizing by imagination ,recalling ,meaningless graph ,and person recalling and so function, it also has enhancing function for those who suffer from affect of memory resulted from dementia or brain desease.