Maleic Anhydride
Maleic anhydride is a cyclic anhydride derived from maleic acid, an acyclic polycarboxylic acid, used primarily in the production of resins and polymers. It falls under HTS 2917.19.27.00 as an anhydride of maleic acid, specifically listed in this subheading for derivatives not elsewhere specified. This chemical is a key intermediate in unsaturated polyester resins and alkyd coatings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically fumaric acid without derivation from aromatic hydrocarbons
Pure fumaric acid (non-derived) is classified earlier in the acyclic polycarboxylic acids heading.
If put up as finishing agents for textiles or paper
Formulations containing these acids as active ingredients for specific industrial uses fall under Chapter 38 preparations.
If imported as chemical mixtures or preparations for laboratory use
Blends or solutions not qualifying as separate compounds under Chapter 29 notes move to prepared chemical mixtures.
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Import Tips & Compliance
• Verify purity certificate and ensure documentation confirms derivation from maleic acid to avoid reclassification under Chapter 29 exclusions
• Include Material Safety Data Sheets (MSDS) as it's hazardous; check DOT regulations for proper packaging and labeling
Related Products under HTS 2917.19.27.00
Adipic Acid Derivative (Dibutyl Adipate)
Dibutyl adipate, an ester derivative of adipic acid, used as a plasticizer in cosmetics and coatings. Falls under HTS 2917.19.27.00 as 'other derivatives' of adipic acid per the subheading scope and Chapter 29 ester classification rules.
Maleic Acid
Pure maleic acid, the dicarboxylic acid precursor to maleic anhydride, explicitly named in this HTS provision. Used in synthesis of unsaturated polyester resins and as a food additive.
Dimethyl Succinate
Dimethyl ester of succinic acid derived from maleic anhydride process. Solvent and intermediate in pharmaceuticals and polymers.
Monoisopropyl Maleate
Half-ester of maleic acid with isopropanol, used in reactive diluents for coatings.
Adipic Acid Peroxide
Peroxide derivative of adipic acid used as polymerization initiator.
Tetrabutyl Fumarate
Tetraester of fumaric acid from aromatic sources, plasticizer application.