87981-52-0

Benzenedicarboxylic acid,bis[1,4,7,10,13-pentakis(chloromethyl)-20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,27-heptadecafluoro-18-methyl-19,19-dioxido-3,6,9,12,15-pentaoxa-19-thia-18-azaheptacos-1-yl] ester