| http://www.w3.org/ns/prov#value | - Suitable esterforming derivatives. are aliphatic or aromatic esters of terephthalic acid, for instance, lowmolecular alkyl esters such as methyl, ethyl, propyl, butyl, amyl, hexyl and heptyl te-rephthalates, and aryl esters such as those from phenol, cresols and other homologues.
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