Thiodiglycol (bis(2-hydroxyethyl) sulfide)
Thiodiglycol, chemically bis(2-hydroxyethyl) sulfide, is an organo-sulfur compound with sulfur directly linked to carbon atoms, specifically named in HTS 2930.90.92.08. Used as a solvent and chemical intermediate, it qualifies under Chapter 29 for separate chemically defined organic compounds in heading 2930.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as other thiocarbamates or dithiocarbamates rather than simple thioethers
Different organo-sulfur functional groups have specific earlier subheadings within 2930.
If imported as a chemical mixture or preparation containing thiodiglycol
Mixtures not qualifying as separate compounds under Chapter 29 notes fall into Chapter 38 prepared binders.
If considered a monohydric alcohol derivative without sulfur classification
Alcohol function might dominate if sulfur linkage doesn't meet organo-sulfur definition, but Chapter 29 rules prioritize last numerical heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain ATF import license as thiodiglycol is a List I chemical regulated under chemical diversion laws
• Provide detailed safety data sheets (SDS) and end-use statements to clear customs without delays
• Label containers properly to distinguish from mixtures; pure thiodiglycol stays in 2930, diluted forms may shift headings
Related Products under HTS 2930.90.92.08
O,O-Diethyl S-[2-(diethylamino)ethyl] phosphorothioate
A specific organo-sulfur compound classified under HTS 2930.90.92.08 as an organo-phosphorus thioester with sulfur directly linked to carbon. This chemical is a separate chemically defined organic compound used in pesticide synthesis and falls within Chapter 29 heading 2930 for other organo-sulfur compounds.
Protonated Thiodiglycol hydrochloride salt
Protonated salt form of thiodiglycol (bis(2-hydroxyethyl) sulfide hydrochloride), included in HTS 2930.90.92.08 coverage for salts of listed compounds. Chapter 29 note (C)(1) classifies inorganic salts with the parent organic compound in organo-sulfur heading 2930.
Alkylated O,O-Diethyl S-[2-(diethylamino)ethyl] phosphorothioate salt
An alkylated salt form of O,O-Diethyl S-[2-(diethylamino)ethyl] phosphorothioate, explicitly covered under HTS 2930.90.92.08 per Chapter 29 note on salts of organic compounds. The organo-sulfur structure with direct C-S bond maintains classification in heading 2930.