Trimethylolethane (TME)
Trimethylolethane (2-ethyl-2-(hydroxymethyl)-1,3-propanediol) is a triol for alkyd resins and varnishes. Classified as acyclic triol under HTS 2905.49.10.00 per its chemical structure with three OH groups.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If only two OH groups (diol error)
Diol classification stricter; triols specifically 2905.49.
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
• CAS 77-83-8 documentation essential; distinguish from diols in 2905.31
• Purity >99% required for Chapter 29; lower grades to 3824
Related Products under HTS 2905.49.10.00
1,2,6-Hexanetriol
1,2,6-Hexanetriol is an acyclic triol used as a moisturizer in cosmetics and intermediate in polymer synthesis. Classified under HTS 2905.49.10.00 as a polyhydric alcohol with three hydroxyl groups on an acyclic chain.
2-Ethyl-2-(hydroxymethyl)-1,3-propanediol (TME variant)
Industrial triol intermediate for resins. Acyclic polyhydric alcohol per HTS 2905.49.10.00.
Glycerol Formal (Triol Acetal)
1,3-Dioxolane-4-methanol derivative but for true: Industrial pentaerythritol.
1,2,4-Butanetriol
Acyclic triol used in propellant formulations and cosmetics. HTS 2905.49.10.00 as chemically defined triol.
Monopentaerythritol
Purified single tetrol molecule for high-performance coatings. Chemically defined tetrol.
Technical Glycerin 99.5%
High-purity glycerin for industrial uses like antifreeze. Qualifies as triol if >99% pure.