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HS HEADING 2911

Acetals and hemiacetals; whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrostated derivatives

HEADING

2911

CHAPTER

29Organic chemicals

In plain English

This category includes acetals and hemiacetals, which may also contain other oxygen-based functions. It further covers versions of these substances that have been treated with halogens, sulfonic groups, nitro groups, or nitroso groups. The classification system groups all of these specific chemical types together under a single entry without further subdivision.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (1)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

2911.00

Acetals and hemiacetals; whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives

Chapter 29 classification notes

Key chapter for pharmaceutical intermediates, narcotic and psychotropic substances (controlled under the 1961 and 1971 UN Conventions), and list-1 chemicals under the 1988 Convention (drug-precursor control). Import requires prior authorisation from the national competent authority.

Frequent misclassification in this chapter

Finished medicaments: Chapter 30 (3004). Agricultural pesticides: Chapter 38 (3808) when formulated; raw active ingredients may be Chapter 29. Essential oils: Chapter 33 when perfumery-grade.

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 29

RULES5,339COUNTRIES85ITEMS111CARRIERS28GUIDES46UNIQUE SOURCES645LATEST VERIFICATION2026-07-26MethodologyChangelog