C4H8
56.11 g/mol
Industrial ChemicalDanger
1-BUTENE
CAS106-98-9EC203-449-2
Category
Industrial Chemical
Compound Class
Other
Primary Use
comonomer for polyethylene production
1-Butene is a colorless gas used primarily as a comonomer in the production of polyethylene. It plays a key role in manufacturing linear low-density polyethylene (LLDPE) and modifying high-density polyethylene (HDPE).
comonomer for linear low-density polyethylene (LLDPE) productionmodifier for high-density polyethylene (HDPE) resinsintermediate for producing 1,2-butylene oxide and polybutene
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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Production of synthetic rubber and plastics
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curing agent for epoxy resins
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hindered amine light stabilizer
ReferenceSame Category
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UV absorber
Safety Reference
Danger
H220Extremely flammable gas
H280Contains gas under pressure; may explode if heated
H320Causes eye irritation
H336May cause drowsiness or dizziness
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 1-BUTENE (CAS 106-98-9) is 2901.23.
HS code (international, 6-digit)
2901.23
EU CN code (8-digit)
2901 23 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
but-1-ene
InChIKey
VXNZUUAINFGPBY-UHFFFAOYSA-N
SMILES
CCC=C
Synonyms (13)
- 1-BUTENE
- BUTENE
- 1-Butene (ca. 10% in Hexane)
- 1-Butene, >=99.0% (GC)
- 1-Butene-1-13C
- 1-Butylene
- Actipol E6
- But-1-ene (10% in Hexanes)
- Butene, 1-
- Ethylethylene
- Isotactic poly(1-butene)
- alpha-Butene
- alpha-Butylene
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