HS 29334 – Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused:

Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026

Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused:

• 2933-49-00-00 – Other
• 2933-41-00-00 – Levorphanol (INN) and its salts

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Frequently asked questions

Does HS 29334 have one duty rate?

Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: is an intermediate classification, not a complete eight-digit tariff item. 2 child tariff lines are available. Select the specific child item before determining the duty rate; CBSA classification is authoritative.

Can CUSMA or other preferences apply under HS 29334?

Preference depends on the exact eight-digit tariff item, qualifying country of origin and origin proof or certification. Consult the linked child tariff lines for T2026-2 MFN and preferential rates. Surtaxes and GST/HST/PST must also be checked for the specific item and origin.