1,4-Benzenedicarboxylic acid, ((6H-dibenz(c,e)(1,2)oxaphosphorin-6-yl)methyl)butanedioic acid, P-oxide, 1,2-ethanediol polymer 1,4-Benzenedicarboxylic acid, polymer with 1,2-ethanediol and ((6-oxido-6H-dibenz(c,e)(1,2)oxaphosphorin-6-yl)methyl)butanedioic acid 63562-48-1