1-Butene
Acyclic hydrocarbons. > Unsaturated: > Butene (butylene) and isomers thereof > 1-Butene
Duty Rate (from China)
Products classified under Tariff item 2901.23.00.10
1-Butene (But-1-ene)
1-Butene is a colorless, flammable acyclic unsaturated hydrocarbon with the formula CH2=CH-CH2-CH3. It is a separate chemically defined isomer of butene, which falls under tariff item 2901.23.00 as an unsaturated acyclic hydrocarbon. It serves as a key monomer in producing linear low-density polyethylene (LLDPE) and other polymers.
2901.23.002-Butene Industrial Grade
Industrial 2-butene is a mixture of cis- and trans-2-butene isomers, both of which are acyclic unsaturated hydrocarbons with the formula CH3-CH=CH-CH3. As a mixture of isomers of the same organic compound, it qualifies under chapter note 1(b) and is classified under tariff item 2901.23.00. It is used in solvent production and alkylation processes.
2901.23.00Butene-1 Polymerization Grade
Butene-1 polymerization grade is high-purity 1-butene (>99.5%) specifically used as a comonomer in LLDPE production. As a separate chemically defined isomer of butene, it falls under tariff item 2901.23.00. The high purity ensures it meets the definition of a chemically defined compound under chapter note 1(a).
2901.23.00cis-2-Butene
cis-2-Butene is the cis stereoisomer of 2-butene, an acyclic alkene with the formula CH3-CH=CH-CH3. As a separate chemically defined isomer of butene, it is classified under tariff item 2901.23.00. It is used in organic synthesis and as a research chemical.
2901.23.00Isobutene (2-Methylpropene)
Isobutene, or 2-methylpropene (CH2=C(CH3)2), is a branched butene isomer and an acyclic unsaturated hydrocarbon. It is a separate chemically defined compound that falls under tariff item 2901.23.00. Its primary use is in manufacturing methyl tert-butyl ether (MTBE) and polyisobutylene.
2901.23.00Isobutylene Research Grade
Isobutylene research grade is ultra-high purity isobutylene (>99.99%) used for laboratory and pharmaceutical synthesis. As a separate chemically defined isomer of butene, it is classified under tariff item 2901.23.00. The high purity ensures it meets the definition of a chemically defined compound under chapter note 1(a).
2901.23.00trans-2-Butene
trans-2-Butene is the trans stereoisomer of 2-butene (CH3-CH=CH-CH3), a separate chemically defined compound. It falls under tariff item 2901.23.00 as an acyclic unsaturated hydrocarbon. It is commonly used in petrochemical research and isomerization studies.