Methylbutene
[CAS# 26760-64-5]

Identification

• Classification: Chemical reagent >> Organic reagent >> Olefins (cyclic and non-cyclic)
• Name: Methylbutene
• Synonyms: Isopentene
• Molecular Formula: C₅H₁₀
• Molecular Weight: 70.13
• CAS Registry Number: 26760-64-5
• EC Number: 247-975-0
• SMILES: CCC(=C)C

Properties

• Refractive index: 1.3856-76 (589.3 nm 20 ºC)^*

^* Saunders, J. H.; Journal of the American Chemical Society 1951, V73, P3797.

Safety Data

• Hazard Symbols: GHS02;GHS07;GHS08;GHS09 Danger
• Hazard Statements: H224-H225-H302-H304-H315-H336-H341-H351-H411
• Precautionary Statements: P203-P210-P233-P240-P241-P242-P243-P261-P264-P270-P271-P273-P280-P301+P316-P301+P317-P302+P352-P303+P361+P353-P304+P340-P318-P319-P321-P330-P331-P332+P317-P362+P364-P370+P378-P391-P403+P233-P403+P235-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H336
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Aspiration hazard	Asp. Tox.	1	H304
Carcinogenicity	Carc.	2	H351
Germ cell mutagenicity	Muta.	2	H341
Skin irritation	Skin Irrit.	2	H315
Flammable liquids	Flam. Liq.	1	H224
Flammable liquids	Flam. Liq.	2	H225

Discovory and Applicatios

Methylbutene is a widely used compound in various industries. Methylbutene, specifically 2-methyl-1-butene, is synthesized by the selective alkylation of butene under controlled conditions. This synthetic route produces a stable, colorless liquid with a unique chemical structure that is useful in numerous industrial processes and applications. 2-Methyl-1-butene is the major form of methylbutene, and its molecular structure is characterized by the substitution of a methyl group on the second carbon atom of its butene backbone. This structural modification affects its physical properties, including volatility, solubility, and chemical reactivity, making it suitable for a variety of applications.

Methylbutene is a key intermediate in the production of specialty chemicals, including plasticizers, lubricants, and synthetic rubbers. The addition of methylbutene improves the performance and durability of products in various industrial applications.

Due to its high octane rating and combustion properties, methylbutene is used as a fuel additive to improve the efficiency and performance of gasoline blends. This application helps reduce emissions and improve engine performance in the automotive and aviation sectors.

In polymer chemistry, methylbutene is involved in the synthesis of polyolefins and elastomers. Incorporating methylbutene improves polymer flexibility, thermal stability, and resistance to environmental stress, making it ideal for making durable materials.

Researchers continue to explore the potential of methylbutene in the following areas: Investigating its role as a building block for pharmaceutical intermediates and agrochemicals, leveraging its structural diversity for tailored molecular design. Exploring methylbutene derivatives as catalysts or reactants in organic synthesis, aiming to simplify the reaction process and increase product yields. Evaluating the biodegradability and ecotoxicological profile of methylbutene for sustainable applications in environmental remediation and waste treatment.

Research into the safety and regulatory compliance of methylbutene ensures that it is used responsibly in industrial and consumer applications and adheres to strict environmental and occupational health standards.

References

2023. Elemental zoning enhances mass transport in zeolite catalysts for methanol to hydrocarbons. Nature Catalysis, 6(3).
DOI: 10.1038/s41929-023-00927-2

2022. Recent Advances in Catalytic Conversion of C5/C6 Alkanes to Olefins: A Review. Catalysis Surveys from Asia, 26(3).
DOI: 10.1007/s10563-022-09367-7

2020. Isoamylene Oligomerization over Zeolite Catalysts. Petroleum Chemistry, 61(2).
DOI: 10.1134/s096554412102002x