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

Heading 2925 of the US Harmonized Tariff Schedule covers Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 2925 at a glance

Goods named in this heading (official line texts): Saccharin and its salts, Glutethimide (INN), Ethylenebistetrabromophthalimide, Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimide, N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide), Chlordimeform (ISO), N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine, N,N'-Diphenylguani.

Subheadings (6-digit)

All tariff lines in heading 2925

LineDescriptionGeneralSection 301 (China)Exclusions
2925.11.00Imides and their derivatives; salts thereof: Saccharin and its salts6.5%List 3 +25%
2925.12.00Imides and their derivatives; salts thereof: Glutethimide (INN)Freenone
2925.19.10Ethylenebistetrabromophthalimide6.5%List 4B (suspended, no extra duty)
2925.19.30Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimideFreeList 3 +25%
2925.19.42Aromatic: Other6.5%List 3 +25%
2925.19.70N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide)FreeList 3 +25%
2925.19.91Other: Other3.7%List 3 +25%
2925.21.00Imines and their derivatives; salts thereof: Chlordimeform (ISO)6.5%List 3 +25%
2925.29.10N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine6.5%List 3 +25%
2925.29.18N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylgua…FreeList 3 +25%
2925.29.20Other: Drugs6.5%List 3 +25%
2925.29.60Other: Other6.5%List 3 +25%
2925.29.70Other: TetramethylguanidineFreeList 4A +7.5%
2925.29.90Other: Other3.7%List 3 +25%

All of chapter 29 · Chapter 29 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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