# HTS 2925: Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2925). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2925: Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2925 | Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds: |  |  |  |  |
|  |   Imides and their derivatives; salts thereof: |  |  |  |  |
| 2925.11.00.00 |     Saccharin and its salts | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 61% | kg |
| 2925.12.00.00 |     Glutethimide (INN) | Free |  | 15.4¢/kg + 61% | kg |
| 2925.19 |     Other: |  |  |  |  |
|  |       Aromatic: |  |  |  |  |
| 2925.19.10.00 |         Ethylenebistetrabromophthalimide | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 61% | kg |
| 2925.19.30.00 |         Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimide | Free |  | 15.4¢/kg + 61% | kg |
| 2925.19.42.00 |         Other | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 61% | kg |
|  |       Other: |  |  |  |  |
| 2925.19.70.00 |         N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide) | Free |  | 25% | kg |
| 2925.19.91.00 |         Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,L,MA,OM,P,PA,PE,S,SG) | 25% | kg |
|  |   Imines and their derivatives; salts thereof: |  |  |  |  |
| 2925.21.00.00 |     Chlordimeform (ISO) | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 61% | kg |
| 2925.29 |     Other: |  |  |  |  |
|  |       Aromatic: |  |  |  |  |
| 2925.29.10.00 |         N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 41% | kg |
| 2925.29.18.00 |         N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylguanidine; andN,N-Dimethyl-N'-[3-[[(methylamino) carbonyl]- oxy] phenyl] methanimidamide monohydro- chloride | Free |  | 15.4¢/kg + 61% | kg |
|  |         Other: |  |  |  |  |
| 2925.29.20.00 |           Drugs | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 67.5% | kg |
| 2925.29.60.00 |           Other | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 61% | kg |
|  |       Other: |  |  |  |  |
| 2925.29.70.00 |         Tetramethylguanidine | Free |  | 25% | kg |
| 2925.29.90.00 |         Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |