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: > Other
Duty Rate (from China)
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)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2924.21.50.00
Urea Dinitrate
Urea dinitrate is a derivative of ureines formed by reacting urea with nitric acid, resulting in a salt with carboxyamide-function structure. It falls under HTS 2924.21.50.00 as 'other' ureines and their derivatives; salts thereof within the cyclic amides category of Chapter 29. This compound is used in chemical synthesis and as an intermediate in organic processes.
Semicarbazide Hydrochloride
Semicarbazide hydrochloride is a ureine derivative salt used in pharmaceutical synthesis and as a reagent for carbonyl compound detection. Classified under HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof, meeting Chapter 29 requirements for separate chemically defined organic compounds with carboxyamide function.
1,1-Dimethylurea
1,1-Dimethylurea is a symmetric ureine derivative used as a solvent and in polymer synthesis, featuring the characteristic urea moiety. It qualifies for HTS 2924.21.50.00 as 'other' ureines and their derivatives under Chapter 29's organic compound provisions.
Benzylurea
Benzylurea is an N-substituted ureine derivative used in organic synthesis and pharmaceutical intermediates. Falls under HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof, as a chemically defined carboxyamide-function compound.
Allythiourea
Allylthiourea serves as a reagent in analytical chemistry and polymer modification, recognized as a ureine derivative with thio-substitution. Classified in HTS 2924.21.50.00 as 'other' ureines and their derivatives within Chapter 29's organic compounds.
Ethylenethiourea
Ethylenethiourea (2-imidazolidinethione) is a cyclic thio-ureine derivative used in rubber vulcanization and as a reagent. It fits HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof per Chapter 29 definitions.
Diphenylurea
Diphenylurea (symmetrical diarylurea) is used in explosives, dyes, and pharmaceuticals as a ureine derivative. HTS 2924.21.50.00 covers it as 'other' ureines and derivatives; salts thereof under Chapter 29 organic compounds.
Biuret
Biuret, a urea condensation product, serves as an analytical reagent and nitrogen source. As a ureine derivative, it classifies under HTS 2924.21.50.00 'other' ureines and derivatives; salts thereof.
Thiosemicarbazide
Thiosemicarbazide is a thio-ureine derivative used in metal chelation and antiviral research. Covered by HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof.
4-Methylsemicarbazide
4-Methylsemicarbazide hydrochloride serves as a selective hydrazide reagent in organic synthesis. HTS 2924.21.50.00 includes it as 'other' ureine derivatives; salts thereof.
N-Phenylsemicarbazide
N-Phenylsemicarbazide is used for carbonyl derivatization in chromatography. As a ureine derivative, it falls under HTS 2924.21.50.00 'other' category.
Carbazide (1,3-Diaminourea)
Carbazide functions as a foaming agent and corrosion inhibitor, classified as ureine derivative under HTS 2924.21.50.00.
Sulfathiourea
Sulfathiourea serves in heavy metal analysis and synthesis. HTS 2924.21.50.00 as thio-ureine derivative.
Guanylurea Sulfate
Guanylurea sulfate used in herbicides and polymers. HTS 2924.21.50.00 salt thereof.
Acetylsemicarbazide
Acetylsemicarbazide for pharmaceutical synthesis. HTS 2924.21.50.00 ureine derivative.