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4-chlorophthalic acid monosodium salt (contains isomers and phthalic acid)
Chemical formula: C8H4ClNaO4.

Chinese name: 4-氯鄰苯二甲酸單鈉鹽
Foreign name: 1,2-Benzenedicarboxylicacid,4-chloro-,sodiumsalt
Molecular weight: 222.558
CAS: 56047-23-5
Main content: ≥75%