Imazalil
Imazalil is an aromatic heterocyclic imidazole fungicide used primarily as a post-harvest treatment for citrus fruits and vegetables to prevent mold growth. It falls under HTS 2934.99.18.00 as an aromatic heterocyclic compound specifically classified as a pesticide, meeting the chapter's criteria for chemically defined organic compounds with nitrogen-containing rings. Its structure includes a modified aromatic imidazole ring directly linked to functional groups.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a formulated pesticide product with carriers or adjuvants
Formulated insecticides, fungicides, or rodenticides with >95% active ingredient fall under Chapter 38, not pure heterocyclic compounds.
If classified primarily by quaternary ammonium structure rather than pesticide use
Certain imidazole derivatives without explicit pesticide designation may shift to other heterocyclic nitrogen compounds in 2933.
If for non-pesticidal industrial uses like pharmaceutical intermediates
When not imported as pesticide, aromatic oxygen heterocyclics may classify under earlier Chapter 29 headings by numerical order rule.
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Import Tips & Compliance
• Verify pesticide registration with EPA before import; unregistered technical grade products may be detained
• Include Safety Data Sheets (SDS) and purity certificates (>95% typically required) in documentation
• Avoid misclassification as a general chemical; specify pesticide end-use to prevent reclassification to 3808
Related Products under HTS 2934.99.18.00
Tebuconazole
Tebuconazole is a systemic triazole fungicide with a 1,2,4-triazole heterocyclic ring used in agriculture for cereal crops and turf protection against fungal diseases. Classified under HTS 2934.99.18.00 as an aromatic or modified aromatic heterocyclic pesticide, it contains the characteristic nitrogen heterocyclic structure defined in Chapter 29 notes. The pure technical grade (>95% purity) qualifies as a separate chemically defined compound.
Propiconazole
Propiconazole, a conazole-class fungicide featuring a 1,2,4-triazole ring, protects crops like rice, turf, and ornamentals from fungal pathogens. It qualifies for HTS 2934.99.18.00 as an 'other' aromatic heterocyclic pesticide, distinct from nucleosides, with its modified aromatic structure meeting Chapter 29's chemical definition requirements. Technical grade material is imported for formulation into end-use products.
Fludioxonil
Fludioxonil is a phenylpyrrole fungicide with a modified aromatic heterocyclic structure used as seed treatment and post-harvest protectant. Under HTS 2934.99.18.00, it classifies as an 'other' aromatic heterocyclic pesticide, containing nitrogen and oxygen in ring structures per Chapter 29 definitions, excluding epoxides or cyclic anhydrides noted. Pure active ingredient supports its chemical compound status.
Cyprodinil
Cyprodinil, a pyrimidinamine fungicide with an aromatic pyrimidine heterocyclic ring, controls diseases in grapes, apples, and cereals. HTS 2934.99.18.00 covers it as an 'other' aromatic heterocyclic pesticide, aligning with Chapter 29's rules for chemically defined compounds and last-in-numerical-order classification over earlier amine headings. Technical material purity exceeds 97%.
Fenbuconazole
Fenbuconazole is a triazole fungicide featuring a 1H-1,2,4-triazole ring used against powdery mildew in fruits and vegetables. It fits HTS 2934.99.18.00 as an aromatic heterocyclic pesticide 'other,' satisfying Chapter 29's exclusion of sulfonated derivatives and inclusion of chemically defined salts. Imported as beige powder technical concentrate.
Myclobutanil
Myclobutanil, a triazole fungicide with modified aromatic 1,2,4-triazole, prevents fungal diseases in grapes, turf, and almonds. Classified in HTS 2934.99.18.00 as 'other' aromatic heterocyclic pesticides, it meets criteria for separate chemically defined compounds without excluded colorants or enzymes. White crystalline technical grade imported for downstream formulation.