Phenyl carbethoxypyrazolone
An ester derivative of pyrazolone with a phenyl group and ethoxycarbonyl substituent on the heterocyclic ring. It matches HTS 2933.19.18.00 as a named aromatic pyrazolone compound with unfused pyrazole ring. Serves as a key intermediate in pharmaceutical synthesis, particularly for analgesics.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the pyrazole ring is fully saturated (indoline structure)
Fully saturated heterocyclic compounds without unfused rings may classify under heading 2932.
If ester dominates and pyrazole is secondary
Carboxylic acid esters take precedence if not specifically heterocyclic per chapter classification rules.
If dissolved in solvent for safe transport
Solutions in solvents for transport safety fall under Chapter 38 per chapter note 2(e).
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Import Tips & Compliance
• Submit Safety Data Sheet (SDS) detailing ester functionality; test for hydrolysis stability during transport; label correctly to avoid confusion with acid forms
Related Products under HTS 2933.19.18.00
2-Chloro-5-sulfophenylmethylpyrazolone
This is a specific aromatic pyrazolone derivative containing a chlorine and sulfonic acid group on a phenyl ring attached to a pyrazole structure. It falls under HTS 2933.19.18.00 as one of the explicitly named heterocyclic compounds with an unfused pyrazole ring that is aromatic or modified aromatic. Primarily used as an intermediate in dye synthesis and pharmaceutical production.
2,5-Dichloro-4-(3-methyl-5-oxo-2-pyrazolin-1-yl) benzenesulfonic acid
A complex aromatic pyrazolone featuring dichloro substitution and a sulfonic acid on a benzene ring linked to a pyrazoline structure. Classified under HTS 2933.19.18.00 as a specifically listed compound with an unfused pyrazole ring (hydrogenated form). Used in manufacturing azo dyes and pigments.
m-Sulfaminopyrazolone (m-Sulfamido-phenyl methyl pyrazolone)
This compound features a sulfamido group at the meta position of a phenyl ring attached to a methylpyrazolone structure. Explicitly listed under HTS 2933.19.18.00 for its aromatic pyrazole ring system. Commonly used in the production of reactive dyes for textiles.
1-(p-Sulfophenyl)-3-methyl pyrazolone
A pyrazolone derivative with a para-sulfophenyl substituent at position 1 and methyl at position 3 on the unfused pyrazole ring. Classified in HTS 2933.19.18.00 as a specifically enumerated aromatic heterocyclic compound. Widely employed as a coupler in azo dye manufacturing.