B

1,3-Butadiene

IUPAC: buta-1,3-diene

C4H6 Organic Compounds CAS 106-99-0
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Quick Reference
Formula / NotationC4H6
CAS Number106-99-0
Molecular Weight54.09
Melting Point-164 °F (NTP, 1992)
Boiling Point24.1 °F at 760 mmHg (NTP, 1992)
Density0.621 at 68 °F (USCG, 1999) - Less dense than water; will float
SolubilityInsoluble (NTP, 1992)
AppearanceButadiene is a colorless gas with an aromatic odor. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. It is easily ignited. Its vapors are heav...
Also Known Asbuta-1,3-diene; Buta-1,3-diene; 106-99-0; Divinyl; Biethylene; Vinylethylene; Bivinyl; Erythrene; Pyrrolylene; Butadieen
CategoryOrganic Compounds

What is 1,3-Butadiene?

1,3-Butadiene can cause cancer according to an independent committee of scientific and health experts. It can cause developmental toxicity, female reproductive toxicity and male reproductive toxicity according to The National Institute for Occupational Safety and Health (NIOSH) and The Environmental Protection Agency (EPA).

Formula & Notation

C4H6

IUPAC Name: buta-1,3-diene

Other Names / Synonyms: buta-1,3-diene; Buta-1,3-diene; 106-99-0; Divinyl; Biethylene; Vinylethylene; Bivinyl; Erythrene; Pyrrolylene; Butadieen

Properties & Characteristics

Appearance: Butadiene is a colorless gas with an aromatic odor. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. It is easily ignited. Its vapors are heav.... Molecular formula: C4H6. Molecular weight: 54.09 g/mol. Boiling point: 24.1 °F at 760 mmHg (NTP, 1992). Melting point: -164 °F (NTP, 1992). Density: 0.621 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: Insoluble (NTP, 1992). Vapor pressure: 1840 mmHg at 70 °F ; 760 mmHg at 23.9 °F (NTP, 1992). LogP: 2.

Physical Data

PropertyValue
Melting Point-164 °F (NTP, 1992)
Boiling Point24.1 °F at 760 mmHg (NTP, 1992)
Density0.621 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight54.09
SolubilityInsoluble (NTP, 1992)
AppearanceButadiene is a colorless gas with an aromatic odor. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. It is easily ignited. Its vapors are heav...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term 1,3-Butadiene
Formula C4H6
CAS Number 106-99-0
Molecular Weight 54.09
Synonyms buta-1,3-diene; Buta-1,3-diene; 106-99-0; Divinyl; Biethylene; Vinylethylene; Bivinyl; Erythrene; Pyrrolylene; Butadieen

Frequently Asked Questions

1,3-Butadiene can cause cancer according to an independent committee of scientific and health experts. It can cause developmental toxicity, female reproductive toxicity and male reproductive toxicity according to The National Institute for Occupational Safety and Health (NIOSH) and The Environmental Protection Agency (EPA).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.