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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If technical grade with >5% impurities
Technical grades with significant impurities classify as mixtures in Chapter 38.
If analyzed as acyclic polyhydric alcohol blend
Statistical suffixes may apply differently based on polyol content declaration.
If with added carboxylic functionality
Multiple oxygen functions classify to later heading per chapter numerical order rule.
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Import Tips & Compliance
• Provide GC-MS analysis showing >98% single isomer purity for Chapter 29 eligibility
• Declare as 'diol intermediate' not 'solvent' on commercial invoice
• Ensure packaging meets UN standards for flammable liquids (Class 3)
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.
1,4-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.
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.
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.