Synthetic organic colouring matter, whether or not chemically defined; preparations as specified in Note 3 to this Chapter based on synthetic organic colouring matter; synthetic organic products of a kind used as fluorescent brightening agents or as luminophores, whether or not chemically defined › Synthetic organic colouring matter and preparations based thereon as specified in Note 3 to this Chapter

320412Subheading

320412 — Acid dyes, whether or not premetallised, and preparations based thereon; mordant dyes and preparations based thereon:

Thuốc nhuộm axit, có hoặc không tạo phức kim loại, và các chế phẩm từ chúng; thuốc nhuộm cầm màu và các chế phẩm từ chúng:

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