---
title: "2934 – Nucleic acids and their salts, whether…: Canada tariff & duty rates"
description: "Every Canadian tariff classification under HS 2934: Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. CBSA…"
canonical: "https://www.adhocs.ca/hs-codes/2934"
---

# 2934 Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds.

Up: [HS codes](https://www.adhocs.ca/hs-codes) › [Chapter 29](https://www.adhocs.ca/hs-codes/29)

6 subheadings. Each subheading links to its page, which lists its 10-digit codes, or to its only 10-digit code.

- [2934.10.00.00](https://www.adhocs.ca/hs-codes/2934.10.00.00) Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure
- [2934.20.00.00](https://www.adhocs.ca/hs-codes/2934.20.00.00) Compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused
- [2934.30.00.00](https://www.adhocs.ca/hs-codes/2934.30.00.00) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused

## Other

- [2934.91.00.00](https://www.adhocs.ca/hs-codes/2934.91.00.00) Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof
- [2934.92.00.00](https://www.adhocs.ca/hs-codes/2934.92.00.00) Other fentanyls and their derivatives
- [2934.99](https://www.adhocs.ca/hs-codes/2934.99) Other

## Other headings in this chapter

- Previous: [2933](https://www.adhocs.ca/hs-codes/2933) Heterocyclic compounds with nitrogen hetero-atom(s) only.
- Next: [2935](https://www.adhocs.ca/hs-codes/2935) Sulphonamides.

[Source: CBSA Customs Tariff](https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/menu-eng.html).