Urethane Aromatic Derivative DU-14
DU-14 is an aromatic ureine derivative classified as a cyclic amide with carboxyamide-function, used primarily as a pharmaceutical intermediate for drug synthesis. It falls under HTS 2924.21.4500 as an 'other' aromatic ureine derivative and salt thereof, meeting Chapter 29 note (a) for chemically defined organic compounds. This excludes non-aromatic or excluded substances per chapter exclusions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a heterocyclic ring with nitrogen
Heterocyclic compounds with nitrogen in ring structure classify under 2933 per chapter note on ring-position hetero-atoms, taking precedence over amide function.
If non-aromatic (aliphatic) structure
Aliphatic ureines fall under non-aromatic subheading 2924.29; aromaticity determines 2924.21 vs 2924.29 split.
If explicitly a salt of an organic compound not classifiable elsewhere
Chapter note (C)(1) directs inorganic salts of organic compounds to the organic parent heading, but 2942 catches unspecified salts.
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Import Tips & Compliance
• Provide Certificate of Analysis (CoA) confirming aromatic cyclic amide structure and purity >98% to verify classification under 2924.21.4500
• Declare exact CAS number and avoid mixing with solvents that alter 'general use' per Chapter 29 note (e)
• Check REACH/ TSCA pre-registration; common pitfall is misclassifying as polymer if molecular weight exceeds limits
Related Products under HTS 2924.21.45.00
N-Phenylurea Derivative PUD-7
PUD-7 is a chemically defined aromatic ureine derivative used in agrochemical synthesis as a pesticide intermediate. Classified under HTS 2924.21.4500 for 'other' aromatic cyclic amides/ureines per Chapter 29 hierarchy, last numerical order rule. Excludes mixtures or retail colorants per chapter exclusions.
Diphenyl Ureine Salt DPS-3
DPS-3 is the sodium salt of an aromatic diphenyl ureine derivative, used as a stabilizer in polymer production. Falls under HTS 2924.21.4500 per note (C)(1) classifying salts with parent organic compound; pure, chemically defined per chapter note (a).
Benzoyl Ureine Derivative BU-19
BU-19 is a benzoyl-substituted aromatic ureine used in dye intermediate production, chemically defined cyclic amide. HTS 2924.21.4500 for 'other' aromatic ureines; excludes azo dye diluents per note (h).
Tolyl Ureine Intermediate TU-8
TU-8, a tolyl aromatic ureine, serves as intermediate for pharmaceutical APIs targeting metabolic disorders. Pure compound under HTS 2924.21.4500; complies with last numerical order and salt rules.
4-Methoxyphenyl Ureine MPU-22
MPU-22 is a methoxy-substituted aromatic ureine derivative for organic synthesis and research applications. Classifies as 'other' under HTS 2924.21.4500 for cyclic amide-function compounds per Chapter 29 scope.
Phenethyl Ureine Derivative PEU-5
PEU-5, an aromatic phenethyl ureine, used in fragrance chemical synthesis but remains pure compound. HTS 2924.21.4500; additives limited per note (g).