Fig. 2From: Discrimination of Baphicacanthis Cusiae Rhizoma et radix and its adulterant species and establishment of an assay method for quality controlConfirmation of identified constituents by comparing with corresponding reference standards based on retention time, accurate molecular mass, and fragmentation pathway. a Cpd.66 (2-benzoxazolinone) and b Cpd.77 (acteoside)Back to article page