Heading 3913
Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms
Tariff classification hierarchy
39PLASTICS AND ARTICLES THEREOF3913Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms
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Subgroups
3913100020Alginic acid, its salts and esters · Sodium alginate extracted from brown seaweed, with - a loss on drying of not more than 15 % by weight (4h at 105 °C), - a water-insoluble fraction of not more than 2 % by weight, calculated on the dry weight3913100090Alginic acid, its salts and esters · Other3913900020Other · Poly(hydroxyalkanoate), predominantly consisting of poly(3-hydroxybutyrate)3913900040Other · Xanthan gum3913900085Other · Sodium hyaluronate · Sterile|sodium hyaluronate (CAS RN 9067-32-7)3913900087Other · Sodium hyaluronate · Non sterile · With: - a weight average molecular weight (Mw) of not more than 900 000, - an endotoxin level of not more than 0,008 Endotoxin units (EU)/mg, - an ethanol content of not more than 1% by weight, - an isopropanol content of not more than 0,5% by weight3913900088Other · Sodium hyaluronate · Non sterile · Other3913900095Other · Chondroitinsulphuric acid, sodium salt|(CAS RN 9082-07-9)3913900099Other · Other