Reaction catalyzed by anthocyanin 5-O-glucoside 6'''-O-malonyltransferase (2.3.1.172)

		+			=		CoA	+
	malonyl-CoA	+		pelargonidin 3-O-(6-caffeoyl-beta-D-glucoside) 5-O-beta-D-glucoside	=		CoA	+		4'''-demalonylsalvianin