2925.21.00.00
Imines and their derivatives; salts thereof / Chlordimeform (ISO)
Classification path
- Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds
- Imines and their derivatives; salts thereof
- Chlordimeform (ISO)
Rates of duty
- General (MFN)
- 6.5%
- Column 2Cuba, North Korea, Russia, Belarus
- 15.4¢/kg + 61%
- Unit of quantity
- kg
Trade agreement rates
Related lines in heading 2925
- 2925.11.00.00Imides and their derivatives; salts thereof / Saccharin and its salts6.5%
- 2925.12.00.00Imides and their derivatives; salts thereof / Glutethimide (INN)Free
- 2925.19.10.00Ethylenebistetrabromophthalimide6.5%
- 2925.19.30.00Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimideFree
- 2925.19.42.00Imides and their derivatives; salts thereof / Aromatic / Other6.5%
- 2925.19.70.00N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide)Free
- 2925.19.91.00Imides and their derivatives; salts thereof / Other3.7%
- 2925.29.10.00N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine6.5%
- 2925.29.18.00N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylguanidine; andN,N-Dimethyl-N'-[3-[[(methylamino) carbonyl]- oxy] phenyl] methanimidamide monohydro- chlorideFree
- 2925.29.20.00Imines and their derivatives; salts thereof / Aromatic / Drugs6.5%
- 2925.29.60.00Imines and their derivatives; salts thereof / Aromatic / Other6.5%
- 2925.29.70.00Imines and their derivatives; salts thereof / TetramethylguanidineFree
About heading 2925
Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds
Heading 2925 covers carboxyimide-function compounds, including saccharin and its salts, and imine-function compounds. It splits first by function: imides and their derivatives in 2925.11 through 2925.19, and imines and their derivatives in 2925.21 through 2925.29. Within each group the lines move from specific named compounds to aromatic and then other residual lines, with mixed duty rates.
Full guide to heading 2925Products in this heading
- Saccharin and saccharin salts used as artificial sweeteners
- Glutethimide
- N-Chlorosuccinimide used as a chlorinating and oxidizing agent
- Bis(o-tolyl)carbodiimide used as a crosslinking agent
- N,N'-Diphenylguanidine used as a rubber accelerator
- Tetramethylguanidine used as an organic base catalyst
- Chlordimeform, an acaricide and insecticide
- Pentamidine and bunamidine hydrochloride
Frequently asked questions
What is the HTS code for saccharin and its salts?
Saccharin and its salts are classified under 2925.11.00.00, with a general (MFN) rate of 6.5%.
What is the duty on N-chlorosuccinimide?
N-Chlorosuccinimide falls under 2925.19.70.00, which carries a general (MFN) rate of Free.
How do I classify tetramethylguanidine?
Tetramethylguanidine is an imine-function compound named in 2925.29.70.00, dutiable at a general (MFN) rate of Free. An imine compound not named in a specific line and not aromatic would fall in 2925.29.90.00 at 3.7%.
Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.