Ester or anhydride of tetrabromophthalic acid; benzene1,2,4tricarboxylic acid; isophthaloyl dichloride, containing by weight 0,8 % or less of terephthaloyl dichloride; naphthalene1,4,5,8tetracarboxylic acid; tetrachlorophthalic anhydride; sodium 3,5bis(methoxycarbonyl)benzenesulphonate
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. esters of orthophthalic acid, phthalic anhydride, terephthalic acid and its salts, dimethyl terephthalate, ester or anhydride of tetrabromophthalic acid, benzene1,2,4tricarboxylic acid, isophthaloyl dichloride containing by weight < 0,8% of terephthaloyl dichloride, naphthalene1,4,5,8tetracarboxylic acid, tetrachlorophthalic anhydride and sodium 3,5bis"methoxycarbonyl"benzenesulphonate)