5')cytidine free acid, [5']Adenylsaeure-cytidin-3'-ylester, 5'-Cytidylyl-(3')-adenosin (5'-Cytidylyl-(2')-adenosin), cytidylyl(3'->5')adenosine, 5'-Adenylic acid 3'-cytidyl ester, 3'-Cytidylic acid 5'-adenosyl ester, ADENYLYL(3'>5')CYTIDINE FREE ACID, cytidylyladenosine, Dinucleotide CpA, 5'-O-(3'-Cytidylyl)adenosine, phosphoric acid adenosin-5'-yl ester cytidin-3'-yl ester, Cytidylyl-(3'-> 5')-adenosin