Skip to content

HTS Code · Heading 2933 · Organic Chemicals

2933.99.12.00

6-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer

Estimated Total Duty

40.8% from China

5.8% MFN base + 25% 301 + 10% S122. Stacked per the centralized 2026 program snapshot.

Tariff Details
HS Code
2933.99.12.00
Description
6-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer
General Duty Rate
5.8%
Unit of Quantity
kg
Section
Section 6
Last Updated
April 6, 2026
Tariff by Country of Origin
OriginMFN BaseStacked ProgramsEst. Total
China5.8%
301 +25%S122 +10%
40.8%
Mexico (USMCA)5.8% None5.8%
Canada (USMCA)5.8% None5.8%
Vietnam5.8%
S122 +10%
15.8%
Germany (EU)5.8%
S122 +10%
15.8%
India5.8%
S122 +10%
15.8%
South Korea5.8%
S122 +10%
15.8%
Totals are estimates. USMCA origins assume the good qualifies under rule-of-origin. Final landed cost depends on MPF, HMF, and any exclusions \u2014 run the full calculator.
All Additional Tariff Rates on This Code
Section 301 (China)
+25%
Section 122 Surcharge
+10%
Hts Special
+Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)

Frequently Asked Questions