bisbenzylisoquinoline alkaloid A type of benzylisoquinoline alkaloid whose structures are built up of two benzylisoquinoline units linked by ether bridges. Various structural patterns resulting from additional bridging between the two units by direct carbon-carbon bridging or by methylenedioxy groups are common. CHEBI:133004 PMID:1955879 PMID:2191354 PMID:3323421 bis(benzylisoquinoline) alkaloid bis(benzylisoquinoline) alkaloids bis-benzylisoquinoline alkaloid bis-benzylisoquinoline alkaloids bisbenzylisoquinoline alkaloids chebi_ontology benzylisoquinoline alkaloid