1,4-Butanediol
1,4-Butanediol (BDO) is an acyclic diol used primarily in polyurethane and spandex production, falling under HTS 2905.39.90.00 as a straight-chain diol other than the principal named diols. Its two terminal hydroxyl groups define its acyclic alcohol classification.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when imported as polymer precursor mixture
Mixtures prepared specifically for plastic manufacturing shift to Chapter 38 chemical preparations.
If technically ethylene glycol despite labeling
Chemical analysis determines true identity over commercial naming per HTS principal use.
If derivatives with additional ketone functionality
Presence of oxygen functions beyond alcohols moves to later numerical heading per chapter note.
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Import Tips & Compliance
• Include COA verifying >99% purity to distinguish from polymer-grade mixtures classifiable elsewhere
• Declare exact stabilizer content (<1% typical) to meet Chapter 29 note (f) allowance
• Avoid retail packaging that could trigger Chapter 38 prepared chemical classification
Related Products under HTS 2905.39.90.00
1,3-Propanediol
1,3-Propanediol is a colorless, viscous liquid diol with two hydroxyl groups on a three-carbon chain, classified under HTS 2905.39.90.00 as an acyclic diol other than ethylene glycol or glycerol. It is widely used as a monomer in polyester fiber production and as a solvent.
1,5-Pentanediol
1,5-Pentanediol is a linear five-carbon acyclic diol used in cosmetics, inks, and polymer synthesis, classified under HTS 2905.39.90.00. Its structure fits perfectly within the 'other acyclic diols' category excluding ethylene glycol and glycerol.
2-Methyl-1,3-Propanediol
2-Methyl-1,3-propanediol (MPDiol) is a branched acyclic diol used in polyester resins and coatings, classified under HTS 2905.39.90.00 as an 'other' diol. The methyl substitution maintains its acyclic alcohol character.
Neopentyl Glycol
Neopentyl glycol (2,2-dimethyl-1,3-propanediol) is a sterically hindered acyclic diol used in alkyd resins and plasticizers, falling under HTS 2905.39.90.00. Its gem-dimethyl structure provides hydrolysis resistance in coatings.
1,6-Hexanediol
1,6-Hexanediol is a long-chain acyclic diol used in polyurethane elastomers and acrylates, classified under HTS 2905.39.90.00. Its six-carbon chain provides flexibility in polymer applications.
Propylene Glycol Methyl Ether Diol
This ether-diol combines propylene glycol structure with methyl ether functionality, used as a coalescing aid in paints, under HTS 2905.39.90.00 as an acyclic diol derivative. The dual hydroxyl/ether nature fits the 'other' category.