WCO Trade Tools provides essential information to support your trade activity.
Harmonized System
Section VI > Chapter 29 > Heading 2908
… sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols. …
Explanatory notes
… sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols. - Derivatives … (A) HALOGENATED DERIVATIVES (1) o - Chlorophenol . Liquid with a strong odour. (2) m - Chlorophenol . … (B) SULPHONATED DERIVATIVES (1) Phenolsulphonic acids ( HOC 6 H 4 SO 3 H ) , obtained by sulphonating …Section VI > Chapter 29 > Heading 2910
… Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with …
Explanatory notes
… 29.10 - Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with … (ISO, INN) 2910.50 - Endrin (ISO) 2910.90 - Other If one molecule of water is removed from organic compounds (diols, …Section V > Chapter 27 > Heading 2713
… Petroleum coke, petroleum bitumen and other residues of petroleum oils or of …
Explanatory notes
… 27.13 ‑ Petroleum coke, petroleum bitumen and other residues of … coke (green coke or calcined coke) is a black, porous, solid residue resulting from the cracking or destructive …Section VII > Chapter 39 > Heading 3904
… Polymers of vinyl chloride or of other halogenated olefins, …
Explanatory notes
… 39.04 ‑ Polymers of vinyl chloride or of other halogenated olefins, …Section VI > Chapter 29 > Heading 2933
Explanatory notes
… structure : 2933.31 - - Pyridine and its salts 2933.32 - - Piperidine and its salts 2933.33 - - Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), … (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, …Section VI > Chapter 28 > Heading 2841
… Salts of oxometallic or peroxometallic acids. …
Explanatory notes
… 28.41 ‑ Salts of oxometallic or peroxometallic acids. 2841.30 ‑ Sodium dichromate 2841.50 ‑ Other chromates … ‑ ‑ Potassium permanganate 2841.69 ‑ ‑ Other 2841.70 ‑ Molybdates 2841.80 ‑ Tungstates (wolframates) 2841.90 ‑ … and peroxometallic acids (corresponding to metal oxides which constitute anhydrides). The main groups of …Section VII > Chapter 39 > Heading 3913
… Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical …
Explanatory notes
… 39.13 ‑ Natural polymers (for example, alginic acid) and modified natural … ‑ Alginic acid, its salts and esters 3913.90 ‑ Other The following are some of the principal natural or modified …Section VI > Chapter 28 > Heading 2837
… Cyanides, cyanide oxides and complex cyanides. …
Explanatory notes
… 28.37 ‑ Cyanides, cyanide oxides and complex cyanides. … nitrogen on sodium carbonate, by treating calcium cyanamide (see heading 31.02) with charcoal or by the … powder, plates or paste, crystalline, hygroscopic, very soluble in water and with an odour of bitter almonds. When …Section VI > Chapter 28 > Heading 2832
Explanatory notes
… heading covers : (A) Metal sulphites ‑ salts of sulphurous acid (H 2 SO 3 ) (which exists only in aqueous solution and corresponds to the sulphur dioxide of heading 28.11). (B) Metal thiosulphates ‑ salts …Section VII > Chapter 39 > Heading 3909
… Amino-resins, phenolic resins and polyurethanes, in primary forms. …