3913 Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

3913.10 Polymers, natural; alginic acid, its salts and esters, in primary forms

• 3913.10.00.20 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 weightFree
• 3913.10.00.90 OtherFree

3913.90 Polymers, natural and modified natural; in primary forms (excluding alginic acid, its salts and esters)

• 3913.90.00.20 Poly(hydroxyalkanoate), predominantly consisting of poly(3-hydroxybutyrate)Free
• 3913.90.00.40 Xanthan gumFree
• Sodium hyaluronate
• 3913.90.00.85 Sterile sodium hyaluronate (cas rn 9067-32-7)Free
• Non sterile
• 3913.90.00.87 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 weightFree
• 3913.90.00.88 OtherFree
• 3913.90.00.95 Chondroitinsulphuric acid, sodium salt (cas rn 9082-07-9)Free
• 3913.90.00.99 OtherFree