CN code 320413 covers basic (cationic) dyes and preparations based thereon. These dyes are salts of organic bases and are characterised by high dyeing intensity. They are used primarily for dyeing acrylic fibres, paper, wood, and as components of inks and toners. Some basic dyes (e.g. crystal violet, malachite green) find application in medical diagnostics and laboratory research. Classification under code 320413 requires confirmation of the cationic character of the dye as defined in Note 3 to Chapter 32. Preparations include ready-to-use solutions and dispersions of basic dyes.

Basic dyes imported into the EU are subject to REACH and CLP regulations. Some basic dyes such as crystal violet and malachite green are substances with proven carcinogenic or mutagenic properties and are subject to specific restrictions. Malachite green is prohibited as a pharmacologically active substance in animal production under Regulation (EU) No 37/2010. CLP labelling must reflect full hazard classification including carcinogenicity, mutagenicity, and aquatic toxicity. The Safety Data Sheet must be current and prepared in the official language of the destination country. Transport requires ADR compliance.

When importing basic dyes under CN code 320413, full chemical specification, CI number, CAS number, and intended use should be presented. For dyes with restricted applications (e.g. malachite green), customs authorities may require additional documentation confirming legal use. Export of some basic dyes may be subject to controls under Regulation (EU) 2021/821. Importers may benefit from tariff preferences under EU trade agreements, verifying rates in the TARIC database. Quality control should include testing for purity, heavy metal content, and specification compliance.

When importing Basic dyes and preparations (CN 3204 13) into the EU, VOC content regulations under Directive 2004/42/EC must be considered. Decorative paints and automotive refinish products have established VOC limits. CLP classification requires appropriate GHS pictogram labelling on packaging. Pigments containing heavy metals (lead, cadmium, chromium VI) are subject to strict REACH restrictions (Annex XVII). Importers must have SDS sheets and ensure labelling complies with destination country regulations. Conformity testing may include spectrometric analysis for composition verification.