| section 06 | Products of the chemical or allied industries |
| chapter 32 | Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and other colouring matter; paints and varnishes; putty and other mastics; inks |
| 32.04 | 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: |
| 3204.20 | －Synthetic organic products of a kind used as fluorescent brightening agents |