2933.19
6-digit headingOther
This is a 6-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Where this sits in the schedule
The tariff schedule is read top-down: each line inherits the wording of the categories above it.
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure:
Codes within Other
14 more specific lines fall under 2933.19.
- 2933.19.04.00Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic:Free
- 2933.19.08.003-(5-Amino-3-methyl-1H-pyrazol-1-yl)- benzenesulfonic acid; Amino-J-pyrazolone; 3-Amino-1-(2,4,6-trichlorophenyl)-5- pyrazolone; 3-Carboxy-1,4-sulfophenylpyrazol-5-one; 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1- yl)benzenesulfonic acid; 1-(m-Chlorophenyl)-3-methyl-2-pyrazolin- 5-one;p-Chloropyrazolone; 1-(2',5'-Dichlorophenyl)-3-methyl-2- pyrazolin-5-one; 1-(o-Ethylphenyl)-3-methyl-2-pyrazolin- 5-one; 5-Imino-3-methyl-1-phenylpyrazole; 5-Imino-3-methyl-1-(m-sulfophenyl)- pyrazole; 2,4-Methylcarboxypyrazolic acid; Methylphenylpyrazolone; and Sulfinpyrazone10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic:5.8%
- 2933.19.15.001,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic:Free
- 2933.19.18.002-Chloro-5-sulfophenylmethylpyrazolone; 2,5-Dichloro-4-(3-methyl-5-oxo-2- pyrazolin-1-yl) benzenesulfonic acid; Phenyl carbethoxypyrazolone;m-Sulfaminopyrazolone (m-Sulfamido- phenyl methyl pyrazolone); and 1-(p-Sulfophenyl)-3-methyl pyrazolone10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic:Free
- 2933.19.23.00Pesticides10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other:6.5%
- 2933.19.30Photographic chemicals8-digit subheadingHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other:6.5%
- 2933.19.30.10Couplers, for use in color negative photographic paper10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other: > Photographic chemicals
- 2933.19.30.95Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other: > Photographic chemicals
- 2933.19.35.00Drugs10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other:6.5%
- 2933.19.37.00Products described in additional U.S. note 3 to section VI10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other: > Other:6.5%
- 2933.19.43.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other: > Other:6.5%
- 2933.19.45.00Drugs10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Other:3.7%
- 2933.19.70.003-Methyl-5-pyrazolone10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Other: > Other:Free
- 2933.19.90.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Other: > Other:6.5%
Chapter 29: Organic Chemicals
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 29Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built