씨엘HS - 인터넷 HS 편람

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제2928호의 해설

Heading 2928 : Organic derivatives of hydrazine or of hydroxylamine.

This heading does not cover hydrazine or hydroxylamine themselves or their inorganic salts (heading 28.25) but includes their organic derivatives only.
Hydrazine (H2N.NH2) may, by replacement of one or more hydrogen atoms, give derivatives, e.g. (R.NH.NH2), and (R.HN.NH.R1), in which R and R1 represent organic radicals.
Hydroxylamine (NH2.OH) can also give numerous derivatives, either by substitution of the hydrogen in the hydroxyl, or in the group NH2.
Nitrosophenols, which are tautomeric forms of quinone oximes, and nitrosoamines, which are tautomeric forms of quinoneimine oximes, are excluded from this heading (see Explanatory Notes to headings 29.08 and 29.21).
Organic derivatives of hydrazine and hydroxylamine include :

(1) Phenylhydrazine.

(2) Tolylhydrazine.

(3) Methylphenylhydrazine.

(4) Bromophenylhydrazine.

(5) Benzylphenylhydrazine.

(6) Naphthylhydrazine.

(7) Phenylhydroxylamine.

(8) Nitrosophenylhydroxylamine.

(9) Dimethylglyoxime.

(10) Phenylglucosazone.

(11) Phenylglyoxime.

(12) Acetaldehyde phenylhydrazone.