Other
Heterocyclic compounds with nitrogen hetero-atom(s) only. > Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2933.39
1-(3-Sulfo propyl) pyridinium hydroxide
1-(3-Sulfo propyl) pyridinium hydroxide is a chemically defined heterocyclic compound containing an unfused pyridine ring with a sulfo propyl substituent. It is a separate chemically defined organic compound, which falls under this tariff item as an 'Other' compound containing an unfused pyridine ring.
2933.39.001,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one
1,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one is a substituted pyridone compound used as an intermediate in pharmaceutical manufacturing. It is a separate chemically defined organic compound, falling under this tariff item as an 'Other' pyridine compound.
2933.39.002,4-Lutidine (2,4-Dimethylpyridine)
2,4-Lutidine (2,4-Dimethylpyridine) is a pyridine derivative with two methyl groups at positions 2 and 4. It is a separate chemically defined organic compound used as a solvent and catalyst in organic synthesis, falling under this tariff item as an 'Other' pyridine compound.
2933.39.002,5-Pyridinedicarboxylic acid
2,5-Pyridinedicarboxylic acid, also known as isocinchomeronic acid, is a heterocyclic organic compound featuring an unfused pyridine ring with two carboxylic acid functional groups. It is used primarily as a building block in coordination polymers, metal-organic frameworks, and pharmaceutical intermediates. This compound falls under tariff item 2933.39.00 as a heterocyclic compound with a nitrogen hetero-atom containing an unfused pyridine ring.
2933.39.002,6-Lutidine (2,6-Dimethylpyridine)
2,6-Lutidine (2,6-Dimethylpyridine) is a symmetric dimethylpyridine used in coordination chemistry and as a ligand precursor. It is a separate chemically defined organic compound, falling under this tariff item as an 'Other' pyridine compound.
2933.39.002-Methyl-5-ethylpyridine
2-Methyl-5-ethylpyridine is an alkyl-substituted pyridine derivative containing an unfused pyridine ring. It is primarily used as an intermediate in the synthesis of flavor and fragrance compounds and in vitamin B6 production. As a heterocyclic compound with a nitrogen hetero-atom and an unfused pyridine ring, it is classified under tariff item 2933.39.00.
2933.39.002-Picoline (2-Methylpyridine)
2-Picoline (2-Methylpyridine) is a liquid organic compound with a methyl group at the 2-position of the pyridine ring. It is a separate chemically defined organic compound, falling under this tariff item as an 'Other' pyridine compound.
2933.39.002-Pyridinecarboxaldehyde
2-Pyridinecarboxaldehyde is a pyridine derivative with an aldehyde functional group attached to the unfused pyridine ring. It is a key reagent in organic synthesis and pharmaceutical production. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with a nitrogen hetero-atom containing an unfused pyridine ring.
2933.39.003,5-Dimethyl-2-hydroxymethyl-4-methoxypyridine (Pyrmethyl alcohol)
3,5-Dimethyl-2-hydroxymethyl-4-methoxypyridine (Pyrmethyl alcohol) is a pyridine derivative with methyl, methoxy, and hydroxymethyl substituents. It is a separate chemically defined organic compound used as an intermediate in vitamin B6 synthesis, falling under this tariff item as an 'Other' pyridine compound.
2933.39.003-Picoline (3-Methylpyridine)
3-Picoline (3-Methylpyridine) is a colorless liquid with a pyridine ring substituted by a methyl group at the 3-position. It is a separate chemically defined organic compound used in vitamin B6 synthesis, falling under this tariff item as an 'Other' pyridine compound.
2933.39.004-Chloro-1-methylpiperidine hydrochloride
4-Chloro-1-methylpiperidine hydrochloride is a piperidine derivative, which is a hydrogenated pyridine ring compound, with a chlorine substitution and hydrochloride salt form. It is used as an intermediate in pharmaceutical and chemical synthesis. This compound falls under tariff item 2933.39.00 as a heterocyclic compound with an unfused pyridine ring (piperidine being the hydrogenated form).
2933.39.004-Phenylpropylpyridine
4-Phenylpropylpyridine is a pyridine derivative with a phenylpropyl substituent on the unfused pyridine ring. It is used in pharmaceutical intermediates and as a fragrance component. This heterocyclic compound with a nitrogen hetero-atom is classified under tariff item 2933.39.00.
2933.39.004-Picoline (4-Methylpyridine)
4-Picoline (4-Methylpyridine) features a methyl substituent at the 4-position of the pyridine ring. It is a separate chemically defined organic compound widely used in agrochemical and pharmaceutical production, falling under this tariff item as an 'Other' pyridine compound.
2933.39.004-Picolyl chloride hydrochloride
4-Picolyl chloride hydrochloride is the hydrochloride salt of 4-picolyl chloride, a pyridine derivative. It is a separate chemically defined organic compound used as an alkylating agent in organic synthesis, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00Benzimidazole Fungicide Carbendazim
Carbendazim is a benzimidazole fungicide with a nitrogen heterocycle structure. While it contains a benzimidazole ring rather than a pyridine ring, it is classified under this tariff item as a heterocyclic compound with nitrogen hetero-atoms. It systemically controls fungal diseases in cereals, vegetables, and ornamentals.
2933.39.00Clopyralid Technical Grade
Clopyralid technical grade is a selective pyridine herbicide for broadleaf weeds in turf and cereals. Its picolinic acid structure contains an unfused pyridine ring, making it a separate chemically defined organic compound under Chapter 29. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Collidine Mixture (2,4,6-Trimethylpyridine)
Collidine Mixture (2,4,6-Trimethylpyridine) refers to trimethylpyridines used in epoxy resin curing and as resolving agents. It is a separate chemically defined organic compound, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00Cyprodinil Active Ingredient
Cyprodinil is an anilinopyrimidine fungicide with a nitrogen heterocyclic structure. It provides protective, curative, and eradicative control of fungal diseases in various crops. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with nitrogen hetero-atoms.
2933.39.00Di-(2,2,6,6-tetramethyl-4-hydroxy-piperidine)sebacate
Di-(2,2,6,6-tetramethyl-4-hydroxy-piperidine)sebacate is a hindered amine light stabilizer (HALS) containing piperidine rings, which are hydrogenated pyridine rings. It is used as a polymer additive to prevent UV degradation in plastics and coatings. This compound falls under tariff item 2933.39.00 as a heterocyclic compound with an unfused pyridine ring.
2933.39.00Dipenta methylene thiuram tetrasulfide
Dipenta methylene thiuram tetrasulfide is a thiuram tetrasulfide derivative containing piperidine rings, which are hydrogenated pyridine rings. It is a separate chemically defined organic compound used as an ultra-accelerator in rubber vulcanization, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00Fenarimol Technical Fungicide
Fenarimol is a pyrimidine fungicide with a nitrogen heterocyclic structure containing an unfused pyridine ring. It controls powdery mildew and other fungal diseases in apples, grapes, and other crops. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with nitrogen hetero-atoms.
2933.39.00Florasulam Active Ingredient
Florasulam active ingredient is a broadleaf herbicide with a triazolopyrimidine structure that includes pyridine characteristics. As a separate chemically defined organic compound, it falls under the pyridine heterocyclic compounds of Chapter 29. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Fluazinam Pure Active
Fluazinam is a broad-spectrum contact fungicide with a nitrogen heterocyclic pyridine structure. It controls late blight, downy mildew, and other diseases in potatoes and other crops. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with nitrogen hetero-atoms.
2933.39.00Gramoxone o-Paraquat Dichloride Herbicide
Gramoxone o-paraquat dichloride is a fast-acting, non-selective herbicide based on a bipyridylium structure with unfused pyridine rings. As a separate chemically defined organic compound, it falls under the pyridine heterocyclic compounds of Chapter 29. The product is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Imazapic Acid Herbicide
Imazapic acid is a selective herbicide for grasses and broadleaf weeds, featuring a pyridine ring in its chemical structure. As a separate chemically defined organic compound, it falls under the pyridine heterocyclic compounds of Chapter 29. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Lutidine Pharmaceutical Grade
Lutidine Pharmaceutical Grade is high-purity lutidine (mixed 2,3-/3,5-isomers >99.5%) for Active Pharmaceutical Ingredient synthesis. It is a mixture of isomers of the same organic compound, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexane diamine
N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexane diamine is a piperidine derivative with a hexane diamine linkage. It is a separate chemically defined organic compound used as a light stabilizer in polymer formulations, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00o-Paraquat Dichloride 360 g/L SL Formulation
This is a 360 g/L soluble liquid formulation of o-paraquat dichloride for professional agricultural weed control. Although the active ingredient is a pyridine heterocyclic compound, the product is a diluted solution presented as a formulated herbicide. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound when imported as a concentrate for further formulation.
2933.39.00o-Paraquat Dichloride Technical Grade 97%
Technical grade o-paraquat dichloride at 97% purity is a separate chemically defined organic compound with a bipyridylium structure containing unfused pyridine rings. It is used as an intermediate in the manufacture of herbicide formulations. The product falls under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Paraquat Dichloride 20% SL Herbicide Concentrate
This 20% soluble liquid concentrate of o-paraquat dichloride is a contact herbicide for non-selective weed control. The active ingredient is a pyridine heterocyclic compound, but the product is presented as a dilute solution. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound when imported as a concentrate for further dilution.
2933.39.00Paraquat Dichloride Herbicide Active Ingredient
Pure o-paraquat dichloride as an active ingredient for desiccant and defoliant herbicide applications is a separate chemically defined organic compound. Its bipyridylium structure contains unfused pyridine rings, placing it in the pyridine heterocyclic compounds of Chapter 29. It is classified under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00p-Chloro-2-benzylpyridine
p-Chloro-2-benzylpyridine is a chlorinated pyridine derivative with a benzyl group on the unfused pyridine ring. It is a key intermediate in pharmaceutical synthesis. This heterocyclic compound with a nitrogen hetero-atom is classified under tariff item 2933.39.00.
2933.39.00α-Phenylpyridylacetic acid, methyl ester
α-Phenylpyridylacetic acid methyl ester is a pyridine carboxylic acid ester with a phenyl group, containing an unfused pyridine ring. It serves as an intermediate in pharmaceutical synthesis, including anti-inflammatory agents. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with a nitrogen hetero-atom.
2933.39.00α-Picoline Technical Grade
α-Picoline Technical Grade is primarily 2-methylpyridine (>85%) used in bulk chemical manufacturing. It qualifies as a separate chemically defined compound under Chapter 29 Note 1(a), despite minor impurities, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00Picolinic acid
Picolinic acid, also known as 2-pyridinecarboxylic acid, is a pyridine carboxylic acid with an unfused pyridine ring. It is widely used in metal chelation, nutrition supplements, and pharmaceutical intermediates. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with a nitrogen hetero-atom.
2933.39.00Piperidino ethyl chloride hydrochloride
Piperidino ethyl chloride hydrochloride is the hydrochloride salt of piperidino ethyl chloride, a piperidine derivative. It is a separate chemically defined organic compound used as a building block in pharmaceutical synthesis, falling under this tariff item as an 'Other' pyridine compound.
2933.39.00Propiconazole Technical Grade
Propiconazole is a systemic triazole fungicide containing a nitrogen heterocyclic structure. It is used to control fungal diseases in crops such as cereals and bananas. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with nitrogen hetero-atoms.
2933.39.00Pyraclostrobin Technical Fungicide
Pyraclostrobin is a strobilurin fungicide featuring a nitrogen heterocyclic structure. It offers preventive and curative control across cereals and other crops. This compound is classified under tariff item 2933.39.00 as a heterocyclic compound with nitrogen hetero-atoms.
2933.39.00Technical o-Paraquat Dichloride 95% Powder
Technical o-paraquat dichloride at 95% purity is a powdered bipyridylium herbicide with unfused pyridine rings. As a separate chemically defined organic compound, it is used in the manufacture of herbicide formulations. The product falls under tariff item 2933.39.00 as an 'Other' pyridine-ring compound.
2933.39.00Triflumizole Technical Material
Triflumizole technical material is an imidazole fungicide whose molecular structure includes an unfused pyridine ring, placing it in the pyridine heterocyclic compounds group of Chapter 29. It is a separate chemically defined organic compound used as an active ingredient in agricultural fungicide formulations. The product is classified under tariff item 2933.39.00 as an 'Other' compound containing an unfused pyridine ring.