Ritodrine Hydrochloride
Ritodrine hydrochloride is a beta-adrenergic agonist containing a phenethylamine linked to a modified aromatic thiazole ring, used as tocolytic agent. The unfused thiazole determines HTS 2934.10.20.00 classification as 'other' aromatic thiazole. Pharmaceutical intermediates with heterocyclic principal structure.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If amino-function dominates over heterocyclic thiazole structure
Chapter notes classify by oxygen/nitrogen functions (2922) if characteristic group prevails.
If imported as sterile bulk active pharmaceutical ingredient
Medicinal APIs in bulk medicinal form exclude from Chapter 29 per Section VI notes.
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Import Tips & Compliance
• DEA/FDA precursor documentation required for pharmaceutical API status
• Chemical structure diagram on invoice confirming thiazole ring essential
• GMP certificate verifies bulk drug substance vs finished dosage classification
Related Products under HTS 2934.10.20.00
2-Aminothiazole
2-Aminothiazole is an aromatic heterocyclic compound containing an unfused thiazole ring with an amino group at the 2-position. It falls under HTS 2934.10.20.00 as an aromatic thiazole derivative used primarily as a pharmaceutical intermediate. This chemically defined organic compound meets Chapter 29 requirements for separate classification.
4-Methylthiazole
4-Methylthiazole is a simple aromatic thiazole ring with a methyl substituent at the 4-position, used in flavor synthesis and pharmaceuticals. Classified under HTS 2934.10.20.00 as 'other' aromatic unfused thiazole compounds. Meets Chapter 29 criteria for chemically defined heterocycles.
Thiamine Hydrochloride (Vitamin B1)
Thiamine hydrochloride contains a substituted pyrimidine-thiazolium structure with an unfused aromatic thiazole ring, classified as a vitamin but tariffed as its heterocyclic component. Falls under HTS 2934.10.20.00 as 'other' aromatic thiazole compound per Chapter 29 precedence. The thiazole ring determines classification over vitamin function.
2-Mercaptothiazoline
2-Mercaptothiazoline (2-thiazoline-2-thiol) features a hydrogenated thiazole ring (thiazoline) with aromatic character through conjugation, used in rubber vulcanization. HTS 2934.10.20.00 covers 'whether or not hydrogenated' aromatic/modified aromatic thiazoles. Chemically defined per Chapter 29 note (a).
Famotidine
Famotidine, an H2-receptor antagonist, contains a thiazole ring linked to guanidine and imidazole moieties in its aromatic heterocyclic structure. Classified under HTS 2934.10.20.00 as the principal thiazole component per numerical order rule. Used in ulcer treatment pharmaceuticals.
2-Acetylamino-5-nitrothiazole
This nitro-substituted aromatic thiazole with acetamido group serves as veterinary pharmaceutical intermediate. The unfused thiazole ring with nitro derivative qualifies for HTS 2934.10.20.00 per Chapter 29 note on halogenated/nitrated derivatives. Chemically defined organic compound.