Isopentane 99% Purity
Isopentane (2-methylbutane), a branched saturated acyclic hydrocarbon used as a blowing agent in polystyrene foam production. Classified under HTS 2901.10.30.00 as a chemically defined isomer per Chapter 29 note (a). Differs from n-pentane in its branched structure.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for technical grade from natural gas processing
Impure hydrocarbons from petroleum sources classify in Chapter 27, not as pure organic compounds.
If sold only as a mixture of n-pentane and isopentane
Pure single isomers are 2901.10.30; mixtures of pentane isomers go to 2901.10.20.
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Import Tips & Compliance
• Provide GC-MS analysis confirming 99% isopentane content to prevent disputes; comply with EPA foaming agent regulations
• Pitfall: improper storage leading to vapor pressure issues in shipping
Related Products under HTS 2901.10.30.00
n-Pentane ACS Reagent Grade
High-purity n-pentane (normal pentane, C5H12) meeting American Chemical Society standards for laboratory use in chromatography and extractions. It falls under HTS 2901.10.30.00 as a separate chemically defined saturated acyclic hydrocarbon. This isomer is distinguished from isopentane by its straight-chain structure.
n-Pentane HPLC Grade
Ultra-pure n-pentane optimized for high-performance liquid chromatography (HPLC) as a non-polar mobile phase solvent. HTS 2901.10.30.00 applies to this saturated acyclic hydrocarbon per chapter notes on chemically defined compounds. Free of aromatic impurities for analytical precision.
Isopentane Blowing Agent
Technical-grade isopentane used industrially as a physical blowing agent for expandable polystyrene (EPS) foam insulation. As a pure saturated acyclic hydrocarbon, it fits HTS 2901.10.30.00 under Chapter 29 definitions. Provides low boiling point for foam expansion.
n-Pentane Spectroscopic Grade
Spectro-grade n-pentane with minimal UV absorbance for use in spectrophotometry and NMR spectroscopy. This chemically defined acyclic saturated hydrocarbon is specifically under HTS 2901.10.30.00. Ensures transparent spectra without interference.
Isopentane Refrigerant Blend Base
High-purity isopentane serving as a component in hydrocarbon refrigerant blends for low-GWP cooling systems. Classified as a separate saturated acyclic hydrocarbon under HTS 2901.10.30.00. Meets REACH purity standards for industrial refrigeration.
n-Pentane Extraction Solvent
Industrial n-pentane used for natural product extractions like essential oils and cannabinoids in food/pharma processing. HTS 2901.10.30.00 for this pure acyclic saturated hydrocarbon per chapter purity notes. Offers high selectivity for non-polar compounds.