Propanoic acid, 2,2-dimethyl-, 6-[7-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-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'-diyl ester (9CI) [ 316121-60-5 ]