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Synthetic organic colouring matter and preparations based thereon; synthetic organic products of a kind used as fluorescent brightening agents or as luminophores; colour lakes and preparations based thereon
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CPA.20.12.21
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Tanning extracts of vegetable origin; tannins and their salts, ethers, esters and other derivatives; colouring matter of vegetable or animal origin
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CPA.20.12.22
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Synthetic organic tanning substances; inorganic tanning substances; tanning preparations; enzymatic preparations for pre-tanning
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CPA.20.12.23
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Colouring matter n.e.c.; inorganic products of a kind used as luminophores
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CPA.20.12.24
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