label: quercetin-3-sulfate 4'-sulfotransferase activity
label_lc: quercetin-3-sulfate 4'-sulfotransferase activity
description: "Catalysis of the reaction: 3'-phospho-5'-adenylyl sulfate + quercetin 3-sulfate = adenosine 3',5'-diphosphate + H+ + quercetin 3,4'-disulfate."