Extracted C4 Butadiene Fraction
Buta-1,3-diene recovered via extractive distillation from C4 steam cracker raffinate, purified to chemical compound standards under HTS 2901.24.10.00. Primary use in nitrile rubber production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If crude benzene/toluene/xylene from aromatics
Aromatic hydrocarbon streams classify under Chapter 27, not aliphatic dienes.
If fermentation-derived with biological impurities
Bio-based feedstocks with impurities beyond Chapter 29 limits fall under mixtures.
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
• Distillation process documentation essential to prove separation from butene/butane mixtures
• NACE inhibitor certificates required if stored >30 days to prevent auto-polymerization
• Bulk imports >500 MT may qualify for duty drawback if re-exported as polymers
Related Products under HTS 2901.24.10.00
Buta-1,3-diene (1,3-Butadiene)
Buta-1,3-diene is a colorless, flammable gas with the molecular formula C4H6, classified as an acyclic unsaturated hydrocarbon under HTS 2901.24.10.00 due to its conjugated double bonds and four-carbon chain structure. It serves as the primary monomer for synthetic rubber production.
Polymerization-Grade Butadiene (PG Butadiene)
High-purity buta-1,3-diene (>99.7%) specifically refined for synthetic rubber polymerization, falling under HTS 2901.24.10.00 as a pure acyclic unsaturated hydrocarbon. Its conjugated diene structure makes it ideal for producing styrene-butadiene rubber (SBR).
Refrigerated Liquid Buta-1,3-diene
Liquefied buta-1,3-diene stored at -4°C under pressure, classified under HTS 2901.24.10.00 per Chapter 29 note (e) as solvent-free pure compound in transport form. Used primarily in tire manufacturing as synthetic rubber feedstock.
99.9% Pure Butadiene Monomer
Ultra-high purity buta-1,3-diene monomer (>99.9%) for specialty polymer applications, classified as chemically defined acyclic hydrocarbon under HTS 2901.24.10.00. Meets Chapter 29 note (a) strict purity standards.
Synthetic Rubber Feedstock Butadiene
Industrial-grade buta-1,3-diene specifically for polybutadiene rubber (PBR) production, classified under HTS 2901.24.10.00 as pure unsaturated acyclic hydrocarbon. Features low acetylene content (<20 ppm).