Trimethylolpropane (TMP)
Trimethylolpropane is a triol used in polyurethane production, lubricants, and radiation-curing resins. HTS 2905.49.10.00 covers this acyclic polyhydric alcohol as it contains three primary hydroxyl groups and qualifies as chemically defined.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If TMP esters with saturated acyclic acids
Alcohol esters classified with corresponding acid heading per note 3(A), which occurs later numerically.
If cyclic acetal derivatives
Chapter notes exclude cyclic derivatives from alcohol headings; acetals go to 2932.
If formulated as finishing agents
Mixtures put up for specific textile finishing excluded from Chapter 29 per note 2(k).
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Import Tips & Compliance
• Include NMR spectrum confirming three -CH2OH groups for classification verification
• Ensure <0.1% water content; aqueous solutions may fall to 3824 per chapter note limitations
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.
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.
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.