What is the item description for 2917399550 of HScode Italy?
The description of the item 2917399550 of Italy HScode: "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, benzene-1,2,4-tricarboxylic acid, isophthaloyl dichloride containing by weight <= 0,8% of terephthaloyl dichloride, naphthalene-1,4,5,8-tetracarboxylic acid, tetrachlorophthalic anhydride and sodium 3,5-bis""methoxycarbonyl""benzenesulphonate) : 1,4,5,8-Naphthalenetetracarboxylic acid-1,8-monoanhydride (CAS RN 52671-72-4)"