Synonyms: Propanoicacid, 2,2-dimethyl-,6-[10-[bis(1-methylethyl)amino]-13-cyano-1-oxo-9,11-dioxa-2-aza-10-phosphatridec-1-yl]-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3',6'-diylester (9CI); (3',6'-Dippivaloylfluoresceinyl)-6-carboxamidohexyl)-1-O-(2-cyanoethyl)-(N,N-diisopropyl)-phorphoramidite