Anhydrous Tetrahydrofuran (THF) Stabilized with BHT
Anhydrous THF with butylated hydroxytoluene (BHT) stabilizer prevents peroxide formation during storage and transport. Classified under HTS 2932.11.00.00 per Chapter note (f) allowing stabilizers necessary for preservation without changing the compound's nature. Used in Grignard reactions and organometallic synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing additional heteroatoms beyond oxygen in the ring
Other heterocyclic oxygen compounds without unfused furan ring fall under later 2932 subheadings per classification rule for last numerical order.
If for stabilized formulations put up for retail lab use
Chemical preparations with additives exceeding Chapter 29 allowances classified as mixtures in 38.
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Import Tips & Compliance
• Include stabilizer concentration in SDS; test for peroxides before import storage
• Pitfall: Failing to declare as peroxide-forming chemical triggers additional DOT scrutiny
Related Products under HTS 2932.11.00.00
Tetrahydrofuran (THF) 99.9% Pure ACS Reagent Grade
Tetrahydrofuran is a colorless, volatile liquid heterocyclic compound containing a saturated five-membered furan ring with one oxygen hetero-atom. It is classified under HTS 2932.11.00.00 as a chemically defined compound with an unfused hydrogenated furan ring structure. Primarily used as a versatile aprotic solvent in chemical reactions and polymer processing.
Industrial Grade Tetrahydrofuran (THF) 99.5% Purity
Industrial-grade THF is a high-purity cyclic ether used extensively in the production of polytetramethylene ether glycol (PTMEG) for spandex fibers. It matches HTS 2932.11.00.00 due to its unfused tetrahydrofuran ring structure as a separate chemically defined organic compound. Essential in pharmaceutical extraction and PVC cement formulations.
Tetrahydrofuran Solvent for HPLC Grade Analysis
HPLC-grade THF is ultra-high purity (99.9%+) with low water and residue content for chromatography applications. It falls under HTS 2932.11.00.00 as a pure chemically defined heterocyclic compound with hydrogenated furan ring. Ideal for mobile phase in reverse-phase HPLC separations.
Tetrahydrofuran Bulk Drum for PTMEG Production
Bulk THF supplied in 200L drums for polymerization to PTMEG used in elastomers like Lycra. Precisely matches HTS 2932.11.00.00 definition of tetrahydrofuran as unfused hydrogenated furan ring compound. Critical raw material in polyurethane and fiber manufacturing.
Peroxide-Free Tetrahydrofuran with Antioxidant
Specially treated THF guaranteed peroxide-free through added antioxidants, safe for long-term storage. HTS 2932.11.00.00 applies per note (f) for added stabilizers essential for preservation. Used in battery electrolyte formulations and pharmaceutical processing.
Tetrahydrofuran NMR Grade Spectroscopic Solvent
NMR-grade THF with 99.96% purity and deuterated options available for spectroscopy. Classified under HTS 2932.11.00.00 as pure tetrahydrofuran meeting Chapter 29 chemical definition. Deuterated version remains classified here as isotopically substituted compound.