Heading 2837: Cyanides, cyanide oxides and complex cyanides
Every line of heading 2837 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Cyanides, cyanide oxides and complex cyanides
Chapter 28: Inorganic chemicals. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 2837.11.00.00 | Of sodium | Free |
| 2837.19.01 | Other | Free |
| 2837.19.01.10 | Potassium cyanide | |
| 2837.19.01.15 | Calcium cyanide | |
| 2837.19.01.25 | Other | |
| 2837.20 | Complex cyanides: | |
| 2837.20.10.00 | Potassium ferricyanide | 1.1% |
| 2837.20.51.00 | Other | 1.7% |
Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 2837 has 4 of them. Schedule B lookup →
- 2837.11.0000CYANIDES AND CYANIDE OXIDES OF SODIUM
- 2837.19.0110POTASSIUM CYANIDE
- 2837.19.0120CYANIDES AND CYANIDE OXIDES, NESOI
- 2837.20.0100COMPLEX CYANIDES
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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