Term Name:	sinapoylglucose-sinapoylglucose O-sinapoyltransferase activity
Synonyms:	1-(hydroxycinnamoyl)-glucose:1-(hydroxycinnamoyl)-glucose hydroxycinnamoyltransferase activity, 1-O-(4-hydroxy-3,5-dimethoxycinnamoyl)-beta-D-glucoside:1-O-(4-hydroxy-3,5-dimethoxycinnamoyl-beta-D-glucoside 1-O-sinapoyltransferase activity, hydroxycinnamoylglucose-hydroxycinnamoylglucose hydroxycinnamoyltransferase activity
Definition:	Catalysis of the reaction: 2 1-O-sinapoyl-beta-D-glucose = 1,2-di-O-sinapoyl-beta-D-glucose + D-glucose.
Ontology:	GO: Molecular Function [GO:0047158]    QuickGO    AmiGO