Other
Carboxyamide-function compounds; amide-function compounds of carbonic acid: > Cyclic amides (including cyclic carbamates) and their derivatives; salts thereof: > Ureines and their derivatives; salts thereof: > Aromatic: > Other: > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2924.21.45.00
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.
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).
Ureine Stabilizer US-11
US-11 aromatic ureine with transport stabilizer, for rubber vulcanization intermediate. Allowed per note (f); HTS 2924.21.4500.
Aromatic Ureine Dye Intermediate AUDI-3
AUDI-3 for azo dye synthesis, pure aromatic ureine. HTS 2924.21.4500; not diluted standard per note (h).
Carbamate Ureine CU-9
CU-9 dual-function aromatic compound, amide principal. HTS 2924.21.4500 per numerical order.
Naphthyl Ureine NU-17
NU-17 polynuclear aromatic ureine for electronics. HTS 2924.21.4500.
Fluoro-Aromatic Ureine FAU-6
FAU-6 halogenated ureine per note. HTS 2924.21.4500.
Sulfonyl Ureine SU-12
SU-12 sulfonated aromatic ureine. HTS 2924.21.4500.
Biphenyl Ureine BPU-4
BPU-4 biphenyl aromatic ureine for LCDs. HTS 2924.21.4500.
Aromatic Cyclic Carbamate CM-42
CM-42 is an aromatic cyclic carbamate derivative functioning as a ureine, used in medicinal chemistry for CNS drug development. HTS 2924.21.4500 covers 'other' aromatic ureines/cyclic amides, compliant with Chapter 29 notes on carboxyamide functions and exclusions for hormones (2937).