Tariff reference › Chapter 29 › 2921.19.31.00
HTS 2921.19.31.00 — 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride
The current US import duty for 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride (HTS 2921.19.31.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Amine-function compounds › Acyclic monoamines and their derivatives; salts thereof: › Other: › 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride
Current US duty rate
| Column 1 (General / MFN) | Free |
|---|---|
| Special (FTA programs) | — |
| Column 2 (other) | 30.5% |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
Alert me when this code changes (free) See all recorded changes
Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=2921.19.31.00&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).