Dimethylformamide (DMF) 99.9% Pure
Dimethylformamide (DMF), chemically N,N-dimethylformamide (CAS 68-12-2), is a colorless liquid amide used as a versatile aprotic solvent in chemical reactions and polymer processing. It falls under HTS 2924.19.11.20 as a chemically defined acyclic amide, specifically the amide of formic acid with dimethylamine, meeting Chapter 29 note (a).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If contains impurities or stabilizers exceeding Chapter 29 thresholds
Mixtures of organic compounds not meeting 'separate chemically defined' criteria fall under Chapter 38 preparations.
If imported as a solution in water for safety/transport
Chapter 29 note (d) allows water-dissolved products to stay in Chapter 29, but excessive dilution may classify as aqueous preparations elsewhere.
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
• Verify purity certificate and CAS number on documentation to confirm classification; ensure proper hazardous material labeling (UN 2265) for DOT compliance
• Avoid misdeclaration as a mixture which could shift to heading 3824
Related Products under HTS 2924.19.11.20
Industrial Grade Dimethylformamide DMF
Industrial-grade DMF is a high-volume solvent for polyurethane production and fiber spinning, characterized by its high boiling point and miscibility with water. Classified under HTS 2924.19.11.20 as the specific acyclic amide dimethylformamide per Chapter 29 definitions.
Pharmaceutical Grade Dimethylformamide
Pharma-grade DMF meets USP/EP standards for use in drug synthesis and peptide manufacturing, ensuring low impurity levels. It is specifically dimethylformamide, an acyclic amide, directly under HTS 2924.19.11.20.
Anhydrous Dimethylformamide Solvent
Anhydrous DMF is water-free for moisture-sensitive reactions like Grignard setups in organic synthesis. As pure N,N-dimethylformamide, it qualifies under HTS 2924.19.11.20 for acyclic amides.
DMF for Polyacrylonitrile Fiber Production
Specialty DMF used in the solvent-spinning process for acrylic fibers, offering high solvency for polymers. It is the chemically defined compound dimethylformamide under HTS 2924.19.11.20.
High-Purity DMF for OLED Manufacturing
Ultra-high purity DMF serves as a solvent in organic electronics, particularly OLED layer deposition. Classified as acyclic amide dimethylformamide in HTS 2924.19.11.20.
Dimethylformamide with Stabilizer
DMF containing a minimal stabilizer for transport stability, still primarily the acyclic amide. Allowed under Chapter 29 note (f) and classified in HTS 2924.19.11.20.