Chapter 29: Organic chemicals

HTS heading 2929: Compounds with other nitrogen function

23 numbered lines under heading 2929, including 18 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 2929
HTS codeDescriptionUnitGeneralSpecialColumn 2
2929Compounds with other nitrogen function:
2929.10Isocyanates:
2929.10.10.00Toluenediisocyanates (unmixed)kg6.5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)15.4¢/kg + 40%
2929.10.15.00Mixtures of 2,4- and 2,6-toluenediisocyanateskg6.5%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)15.4¢/kg + 43.5%
2929.10.20.00Bitolylene diisocyanate (TODI);o-Isocyanic acid, o-tolyl ester; and Xylene diisocyanatekg5.8%Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 40%
2929.10.27.00N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanatekgFree15.4¢/kg + 52%
2929.10.30.003,4-Dichlorophenylisocyanatekg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)15.4¢/kg + 52%
2929.10.35.001,6-Hexamethylene diisocyanatekg6.5%Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 52%
Other:
2929.10.55.00Products described in additional U.S. note 3 to section VIkg6.5%Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 52%
2929.10.80Other6.5%Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 52%
2929.10.80.10Methylenedi-p-phenylene isocyanate (MDI)kg
2929.10.80.90Otherkg
2929.90Other:
2929.90.05.002,2'-Bis(4-cyanatophenyl)-1,1,1,3,3,3-hexafluoro- propane; 2,2-Bis((4-cyanatophenyl) propane; 1,1-Ethylidenebis (phenyl-4-cyanate); 4,4'-Methylene bis(2,6-dimethylphenylcyanate); and 1,3-Phenylenebis (1-methylethylidenebis) cyanic acid, 1,4-phenylene esterkgFree15.4¢/kg + 52%
Other:
Aromatic:
2929.90.15.00Products described in additional U.S. note 3 to section VIkg6.5%Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 52%
2929.90.20.00Otherkg6.5%Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)15.4¢/kg + 52%
2929.90.50OtherNote: See 9903.90.08.6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)30.5%
N,N-Dialkyl (methyl, ethyl,n-propyl or isopropyl) phosphoramidic dihalides:
2929.90.50.15N,N-Dimethylphosphoramidic dichloridekg
2929.90.50.18Otherkg
2929.90.50.20Dialkyl (methyl, ethyl, n-propyl or isopropyl)-N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidateskg
2929.90.50.30N-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated saltskg
2929.90.50.40O-Alkyl (H or ≤C10, incl. cycloalkyl) N-(dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated saltskg
2929.90.50.95Otherkg
X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULFONAMIDES

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.