Reaction catalyzed by chondroitin 6-sulfotransferase (2.8.2.17)

		+			=			+
	3'-phosphoadenylylsulfate	+		UDP-N-acetylgalactosamine 4-sulfate	=		adenosine 3',5'-bisphosphate	+		UDP-N-acetylgalactosamine 4,6-bissulfate