1278-25-7 5'-Thymidylic acid, thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')-thymidylyl-(5'.3')- EINECS 215-063-1