Customs Tariff
CHAPTER 29
ORGANIC CHEMICALS
1.
Except
where
the
context
otherwise
requires,
the
headings
of
this
Chapter
apply
only
to:
(a) Separate chemically defined organic compounds, whether or not containing impurities;
(b) Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereo isomers), whether or not saturated (Chapter 27);
(c) The products of headings 2936 to 2939 or the sugar ethers, sugar acetals and sugar esters, and their salts, of heading 2940, or the products of heading 2941, whether or not chemically defined;
(d) The products mentioned in (a), (b) or (c) above dissolved in water;
(e) The products mentioned in (a), (b), or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use;
(f) The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport;
(g) The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a colouring or odoriferous substance or an emetic added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use;
(h) The following products, diluted to standard strengths, for the production of azo dyes: diazonium salts, couplers used for these salts and diazotisable amines and their salts.
2. This Chapter does not cover:
(a) Goods of heading 1504 or crude glycerol of heading 1520;
(b) Ethyl alcohol (heading 2207 or 2208);
(c) Methane or propane (heading 2711);
(d) The compounds of carbon mentioned in Note 2 to Chapter 28;
(e) Urea (heading 3102 or 3105);
(f) Colouring matter of vegetable or animal origin (heading 3203), synthetic organic colouring matter, synthetic organic products of a kind used as fluorescent brightening agents or as luminophores (heading 3204) or dyes or other colouring matter put up in forms or packings for retail sale (heading 3212);
(g) Enzymes (heading 3507);
(h) Metaldehyde, hexamethylenetetramine or similar substances, put up in forms (for example, tablets, sticks or similar forms) for use as fuels, or liquid or liquefied-gas fuels in containers of a kind used for filling or refilling cigarette or similar lighters and of a capacity not exceeding 300 cm3 (heading 3606);
(ij) Products put up as charges for fire-extinguishers or put up in fire-extinguishing grenades, of heading 3813; ink removers put up in packings for retail sale, of heading 3824; or
(k) Optical elements, for example, of ethylenediamine tartrate (heading 9001).
3. Goods which could be included in two or more of the headings of this Chapter are to be classified in that one of those headings which occurs last in numerical order.
4. In headings 2904 to 2906, 2908 to 2911 and 2913 to 2920, any reference to halogenated, sulphonated, nitrated or nitrosated derivatives includes a reference to compound derivatives, such as sulphohalogenated, nitrohalogenated, nitrosulphonated or nitrosulphohalogenated derivatives.
Nitro or nitroso groups are not to be taken as "nitrogen-functions" for the purposes of heading 2929.
For the purposes of headings 2911, 2912, 2914, 2918 and 2922, ―oxygen function‖, the characteristic organic oxygen-containing group of those respective headings, is restricted to the oxygen-functions referred to in headings 2905 to 2920.
5. (A) The esters of acid-function organic compounds of sub-Chapters
I
to
VII
with
organic
compounds
of
these
sub-Chapters
are
to
be
classified
with
that
compound
which
is
classified
in
the
heading
which
occurs
last
in
numerical
order
in
these
sub-Chapters.
(B) Esters
of
ethyl
alcohol
with
acid-function
organic
compounds
of
sub-Chapters
I
to
VII
are
to
be
classified
in
the
same
heading
as
the
corresponding
acid-function
compounds.
(C) Subject
to
Note
1
to
Section
VI
and
Note
2
to
Chapter
28:
(1) Inorganic salts of organic compounds such as acid-, phenol- or enol-function compounds or organic bases, of sub-Chapters I to X or heading 2942, are to be classified in the heading appropriate to the organic compound;
(2) Salts formed between organic compounds of sub-Chapters I to X or heading 2942 are to be classified in the heading appropriate to the base or to the acid (including phenol- or enol-function compounds) from which they are formed, whichever occurs last in numerical order in the Chapter.
(3) co-ordination compounds, other than products classifiable in Sub-Chapter XI or heading 2941, are to be classified in the heading which occurs last in numerical order in Chapter 29, among those appropriate to the fragments formed by "cleaving" of all metal bonds, other than metal-carbon bonds.
(D) Metal
alcoholates
are
to
be
classified
in
the
same
heading
as
the
corresponding
alcohols
except
in
the
case
of
ethanol
(heading
2905).
(E) Halides
of
carboxylic
acids
are
to
be
classified
in
the
same
heading
as
the
corresponding
acids.
6.
The
compounds
of
headings
2930
and
2931
are
organic
compounds
the
molecules
of
which
contain,
in
addition
to
atoms
of
hydrogen,
oxygen
or
nitrogen,
atoms
of
other
non-metals
or
of
metals
(such
as sulphur, arsenic or
lead)
directly
linked
to
carbon
atoms.
Heading
2930
(organo-sulphur
compounds)
and
heading
2931
(other organo-inorganic
compounds)
do
not
include
sulphonated
or
halogenated
derivatives
(including
compound
derivatives)
which,
apart
from
hydrogen,
oxygen
and
nitrogen,
only
have
directly
linked
to
carbon
the
atoms
of
sulphur
or
of
a
halogen
which
give
them
their
nature
of
sulphonated
or
halogenated
derivatives
(or
compound
derivatives).
7. Headings 2932, 2933 and 2934 do not include epoxides with a three-membered ring, ketone peroxides, cyclic polymers of aldehydes or of thioaldehydes, anhydrides of polybasic carboxylic acids, cyclic esters of polyhydric alcohols or phenols with polybasic acids, or imides of polybasic acids.
These provisions apply only when the ring-position hetero-atoms are those resulting solely from the cyclising function or functions here listed.
8.
For
the
purposes
of
heading
2937:
(a)
the
term
"hormones"
includes
hormone-releasing
or
hormone-stimulating
factors,
hormone
inhibitors
and
hormone
antagonists
(anti-hormones);
(b)
the
expression
"used
primarily
as
hormones"
applies
not
only
to
hormone
derivatives
and
structural
analogues
used
primarily
for
their
hormonal
effect,
but
also
to
those
derivatives
and
structural
analogues
used
primarily
as
intermediates
in
the
synthesis
of
products
of
this
heading.
SUB-HEADING NOTES
1.Within any one heading of this Chapter,
derivatives of a chemical compound (or group of chemical compounds) are to be
classified in the same sub-heading as that compound (or group of compounds)
provided that they are not more specially covered by any other sub-heading and
that there is no residual sub-heading named "other" in the series of subheadings
concerned
2. Note 3 to this Chapter shall not be applicable to the sub-headings of this
Chapter.