Pharma-Grade Maleic Anhydride Crystals
Pharmaceutical grade maleic anhydride crystals with <10 ppm heavy metals, under HTS 2917.14.5000 as pure acyclic anhydride. Intermediate for maleate salt formation in drug synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If antibiotic derivative
Antibiotics and derivatives specifically excluded to heading 2941.
If put up as medicinal extract
Medicinal preparations exclude to Chapter 30 per note 2(e).
If aromatized derivative
Aromatic polycarboxylic derivatives classify in separate subheading.
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
• Provide USP/EP certificate even though tariff remains Chapter 29 chemical
• Heavy metals analysis (<10 ppm) prevents Chapter 28 inorganic classification
• File FDA prior notice for human pharmaceutical intermediate imports
Related Products under HTS 2917.14.50.00
Maleic Anhydride Flakes
Maleic anhydride in flake form, a white crystalline solid derived from oxidation of butene, classified under HTS 2917.14.5000 as an acyclic polycarboxylic acid anhydride. Used primarily as a chemical intermediate for resins and coatings, meeting Chapter 29 note requirements for separate chemically defined organic compounds.
Industrial Maleic Anhydride Briquettes
Compressed maleic anhydride briquettes for bulk industrial handling, an acyclic dicarboxylic acid anhydride under HTS 2917.14.5000. Primarily used in unsaturated polyester resin manufacturing, qualifying as a separate chemically defined compound per Chapter 29.
Purified Maleic Anhydride Pellets
High-purity maleic anhydride pellets (>99.5%) for pharmaceutical intermediate synthesis, classified in HTS 2917.14.5000 as 'other' acyclic polycarboxylic anhydride. Meets Chapter 29 criteria for chemically defined compounds without excluded additives.
Technical Grade Maleic Anhydride Powder
Technical grade maleic anhydride powder (98-99% purity) for agricultural chemical synthesis, under HTS 2917.14.5000 as other maleic anhydride forms. Qualifies as separate organic compound per Chapter 29 note (a), excluding mixtures.
Maleic Anhydride with Stabilizer Additive
Maleic anhydride containing <0.05% polymerization inhibitor (hydroquinone) for transport stability, classified HTS 2917.14.5000 per Chapter 29 note (f). Remains chemically defined acyclic anhydride for resin production.
Brittle Maleic Anhydride Lumps
Solid maleic anhydride in brittle lump form from cooled molten material, HTS 2917.14.5000 'other' classification for acyclic polycarboxylic anhydrides. Used in paper sizing chemical manufacture.