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2934.10.90.00/2,4-Thiazolidinedione/Mexico

2,4-Thiazolidinedione from Mexico

2,4-Thiazolidinedione serves as the core structure for glitazone antidiabetic drugs like pioglitazone, featuring a saturated thiazolidine ring (hydrogenated thiazole). Classifies under HTS 2934.10.90.00 as 'other' thiazole ring compounds including hydrogenated forms per heading description.

Duty Rate — Mexico → United States

100%

Rate breakdown

9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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Import Tips

• Verify tautomer stability with HPLC; declare keto-enol equilibrium state

• Include downstream synthesis pathway documentation for legitimate pharmaceutical use

• Monitor DEA precursor chemical status for controlled substance analogs

2,4-Thiazolidinedione from Mexico — Import Duty Rate | HTS 2934.10.90.00