2933.19.70.00 - 3-Methyl-5-pyrazolone

This HTS classification, 2933.19.70.00, specifically covers 3-Methyl-5-pyrazolone. This compound is a heterocyclic organic chemical characterized by its unfused pyrazole ring, which is a five-membered ring containing two adjacent nitrogen atoms. The presence of a methyl group at the 3-position and a ketone group at the 5-position of the pyrazole ring are key structural features for this classification. 3-Methyl-5-pyrazolone serves as a crucial intermediate in the synthesis of various dyes, pigments, pharmaceuticals, and agrochemicals.

At this level of detail, 3-Methyl-5-pyrazolone is distinguished from its sibling category, 2933.19.90.00, which encompasses all "Other" compounds containing an unfused pyrazole ring that do not specifically fall under the 3-Methyl-5-pyrazolone designation. The "Other" sibling category would include other substituted pyrazoles or pyrazolone derivatives not meeting the specific chemical identity of 3-Methyl-5-pyrazolone.

As this is a leaf node within the HTS database, there are no further subcategories. Therefore, the classification of goods under 2933.19.70.00 is definitively for 3-Methyl-5-pyrazolone itself, based on its established chemical structure and identity. Importers and exporters should ensure that the imported or exported chemical precisely matches the chemical and structural characteristics of 3-Methyl-5-pyrazolone to warrant classification under this specific code.