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HS Code 29012300 - Butene and its isomers only

Butene "butylene" and isomers thereof

Can be used for an export declaration.
(Combined Nomenclature, Customs Tariff Number)

Examples (No official information or warranty)

- 1-Butene (C4H8, 56.11 g/mol, CAS Number: 106-98-9)
- 2-Butene (C4H8, 56.11 g/mol, CAS Number: 107-01-7)
- Isobutene (C4H8, 56.11 g/mol, CAS Number: 115-11-7)
- Cyclobutene (C4H6, 54.09 g/mol, CAS Number: 822-35-5, excluded as it is a cyclic hydrocarbon) is not included as per description
- 2-Methylprop-1-ene (C4H8, 56.11 g/mol, CAS Number: 115-11-7, also known as isobutene)
- 3-Methylprop-1-ene (C4H8, 56.11 g/mol, CAS Number: not available, not a widely recognized isomer)