2930.90.92.10
Organo-sulfur compounds / Cysteine hydrochloride
Classification path
- Organo-sulfur compounds
- Other
- Other
- Other
- Other
- Other
- Cysteine hydrochloride
Rates of duty
- General (MFN)
- 3.7%
- Column 2Cuba, North Korea, Russia, Belarus
- 25%
- Unit of quantity
- kg
Trade agreement rates
Related lines in heading 2930
- 2930.10.01.002-(N,N-Dimethylamino) ethanethiol3.7%
- 2930.20.10.00Thiocarbamates and dithiocarbamates / Aromatic / Pesticides6.5%
- 2930.20.20.10Products used principally for rubber processing6.5%
- 2930.20.20.50Thiocarbamates and dithiocarbamates / Aromatic / Other6.5%
- 2930.20.70.00S-(2,3,3'-trichloroallyl)diisopropylthiocarbamateFree
- 2930.20.90.10Thiocarbamates and dithiocarbamates / Pesticides3.7%
- 2930.20.90.20Products used principally for rubber processing3.7%
- 2930.20.90.50Thiocarbamates and dithiocarbamates / Other3.7%
- 2930.30.30.00Tetramethylthiuram monosulfideFree
- 2930.30.60.00Thiuram mono-, di- or tetrasulfides / Other3.7%
- 2930.40.00.00Organo-sulfur compounds / MethionineFree
- 2930.60.00.002-(N,N-Diethylamino)ethanethiol3.7%
About heading 2930
Organo-sulfur compounds
Heading 2930 covers chemically defined organo-sulfur compounds, meaning molecules whose sulfur is bonded to carbon. The heading starts with lines for specific named compounds (2930.10 through 2930.80, such as methionine and thiocarbamates) and then puts everything else in 2930.90, which splits by aromatic versus other structure, by pesticide or rubber-processing use, and by acid function.
Full guide to heading 2930Products in this heading
- Methionine, an amino acid used in animal feed and pharmaceuticals
- Thioglycolic acid, used in hair care and depilatory products
- Tetramethylthiuram monosulfide, a rubber accelerator and fungicide
- Malathion and phorate, agricultural insecticides
- Acetylcysteine, a mucolytic drug ingredient
- 2-Ethylhexyl mercaptoacetate, a chemical intermediate
- Dimethyl sulfide, a flavor and industrial solvent compound
- Dibutylthiourea, a rubber and chemical intermediate
Frequently asked questions
What is the HTS code for methionine?
Methionine is classified under 2930.40.00.00. The general (MFN) rate for that line is Free.
What is the duty on tetramethylthiuram monosulfide?
Tetramethylthiuram monosulfide falls under 2930.30.30.00. The general (MFN) rate is Free, while other thiuram mono-, di- and tetrasulfides under 2930.30.60.00 pay 3.7%.
How do I classify acetylcysteine?
Acetylcysteine is a mercaptocarboxylic acid, so it goes under 2930.90.49.40. The general (MFN) rate for that line is 4.2%.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.