n-Pentane and isopentane
Acyclic hydrocarbons: > Saturated: > n-Pentane and isopentane
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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.
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.
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.
Isopentane Polymerization Diluent
Isopentane employed as a diluent in slurry-phase polymerization of polyolefins like polyethylene. As a defined saturated acyclic hydrocarbon, it is under HTS 2901.10.30.00. Provides low viscosity and easy recovery in reactor processes.
n-Pentane Calibration Standard
Certified reference n-pentane at 1000 ppm in solvent for gas chromatography calibration of hydrocarbon analyzers. Pure base compound under HTS 2901.10.30.00, with dilution per Chapter 29 note (d). NIST-traceable for environmental monitoring.
Isopentane Low Boiling Fraction
Distilled isopentane fraction (boiling point ~28°C) for precision applications in organic synthesis. HTS 2901.10.30.00 as saturated acyclic isomer per chapter notes. High assay purity minimizes side reactions.