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💾 Data Updated: Latest version • Last updated: December 09, 2025

9902.11.51 - 3,5-Dimethyl-1H-pyrazole-oligo(hexamethylene diisocyanate) in solvents (CAS No. 163206-31-3) (provided for in subheading 3911.90.90).

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)No change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS code, 9902.11.51, specifically designates "3,5-Dimethyl-1H-pyrazole-oligo(hexamethylene diisocyanate) in solvents (CAS No. 163206-31-3)". This is a specialized chemical product, identified by its Chemical Abstracts Service (CAS) number, which is provided for under subheading 3911.90.90 of the Harmonized Tariff Schedule. Its classification within Chapter 99 signifies that it is subject to temporary legislation, modifications, or additional import restrictions.

Distinguishing this category from its siblings in the HTS Database Root is straightforward. The sibling categories, such as those for live animals (Chapters 01), represent fundamentally different types of goods. This node, however, focuses on a specific chemical compound, highlighting its nature as a polymer precursor or component, rather than biological entities. The primary classification criteria here are the chemical identity and the presence of solvents.

As a leaf node, HTS code 9902.11.51 does not have further subcategories. Therefore, the focus for classification purposes rests entirely on accurately identifying the described chemical substance and ensuring it meets the conditions stipulated under the temporary provisions of Chapter 99. Importers must verify that the imported material precisely matches the chemical name, CAS number, and solvent content as specified to ensure correct customs declaration and compliance.

Frequently Asked Questions

›What is HTS code 9902.11.51?
HTS code 9902.11.51 covers 3,5-Dimethyl-1H-pyrazole-oligo(hexamethylene diisocyanate) in solvents (CAS No. 163206-31-3) (provided for in subheading 3911.90.90). under the US Harmonized Tariff Schedule. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What products are classified under 9902.11.51?
This classification covers 3,5-Dimethyl-1H-pyrazole-oligo(hexamethylene diisocyanate) in solvents (CAS No. 163206-31-3) (provided for in subheading 3911.90.90).. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What is the import duty rate for 9902.11.51?
The general rate of duty for HTS 9902.11.51 is Free. Special preferential rates may apply: No change. The Column 2 rate is No change.
Go up to Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended

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