What is HTS code 2837?

HTS heading 2837 covers cyanides, cyanide oxides and complex cyanides. It sits in Chapter 28 (inorganic chemicals) of the US Harmonized Tariff Schedule and contains 6 tariff lines.

What is the duty rate for HTS 2837?

General duty rates from 1.1% to 1.7%, with 4 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.

How many digits does a full HTS code have?

US import entries require the full 10-digit HTS code. Heading 2837 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.

Heading 2837

HTS code 2837 — Cyanides, cyanide oxides and complex cyanides

Chapter: 28 — Inorganic chemicals
Tariff lines: 6
General duty: General duty rates from 1.1% to 1.7%, with 4 duty-free lines

Tariff lines under heading 2837

Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.

HTS code	Description	General rate	Unit
2837.11.0000	Of sodium (Cyanides, cyanide oxides and complex cyanides > Cyanides and cyanide oxides)	Free	kg
2837.19.0110	Potassium cyanide (Cyanides, cyanide oxides and complex cyanides > Cyanides and cyanide oxides > Other)	Free	kg
2837.19.0115	Calcium cyanide (Cyanides, cyanide oxides and complex cyanides > Cyanides and cyanide oxides > Other)	Free	kg
2837.19.0125	Other (Cyanides, cyanide oxides and complex cyanides > Cyanides and cyanide oxides > Other)	Free	kg
2837.20.1000	Potassium ferricyanide (Cyanides, cyanide oxides and complex cyanides > Complex cyanides)	1.1%	kg
2837.20.5100	Other (Cyanides, cyanide oxides and complex cyanides > Complex cyanides)	1.7%	kg

Documents required to import under 2837

Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.

Commercial InvoiceRequired
Packing ListRequired
Bill of Lading / Airway BillRequired
CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
Safety Data Sheet (SDS/MSDS)Required
EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)

Common questions

What is HTS code 2837?: HTS heading 2837 covers cyanides, cyanide oxides and complex cyanides. It sits in Chapter 28 (inorganic chemicals) of the US Harmonized Tariff Schedule and contains 6 tariff lines.
What is the duty rate for HTS 2837?: General duty rates from 1.1% to 1.7%, with 4 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
How many digits does a full HTS code have?: US import entries require the full 10-digit HTS code. Heading 2837 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.

Tariff lines under heading 2837

Documents required to import under 2837

Common questions

Related headings in Chapter 28