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2-Methyl-1-butene

2-Methyl-1-butene structure

CAS No.: 563-46-2

Chemical Name:: 2-Methyl-1-butene

Synonyms: 2-methyl-but-1-ene;2-methyl-1-buten;gamma-Isoamylene;1-Isoamylene;2-Methylbutene;C2H5C(CH3)=CH2;2-METHYLBUTENE-1;2-Methyl-1-butene;1-butene,2-methyl-;Methyl-1-butene, 2-

CBNumber:: CB8756763

Molecular Formula:: C5H10

Molecular Weight:: 70.13

MDL Number:: MFCD00009333

MOL File:: 563-46-2.mol

MSDS File:: SDS

Last updated:2026-09-12 18:55:52

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2-Methyl-1-butene Properties

Melting point	−137 °C(lit.)
Boiling point	31 °C(lit.)
Density	0.65 g/mL at 25 °C(lit.)
vapor pressure	9.98 psi ( 20 °C)
refractive index	n20/D 1.378(lit.)
Flash point	31-32°C
storage temp.	2-8°C
solubility	Chloroform (Sparingly), Methanol (Slightly)
form	liquid
color	Colorless to Almost colorless
Water Solubility	Soluble in ether, ethanol and benzene. Insoluble in water.
Specific Heat Capacity	Cp(liquid): 2.24 J/(g·K), at 25℃
BRN	505975
Henry's Law Constant	2.3×10^-5 mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Dielectric constant	2.2000000000000002
Stability	Stable. Incompatible with oxidizing agents. Extremely flammable.
Major Application	environmental petroleum
InChI	1S/C5H10/c1-4-5(2)3/h2,4H2,1,3H3
InChIKey	MHNNAWXXUZQSNM-UHFFFAOYSA-N
SMILES	CCC(C)=C
CAS DataBase Reference	563-46-2(CAS DataBase Reference)
FDA UNII	33C9Y0I55H
EPA Substance Registry System	2-Methyl-1-butene (563-46-2)
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS08

Signal word

Danger

Hazard statements

H304-H412-H224

Precautionary statements

P501-P273-P240-P210-P233-P243-P241-P242-P280-P370+P378-P331-P303+P361+P353-P301+P310-P403+P235-P405

PPE

Eyeshields, Faceshields, Gloves

Hazard Codes

F+,Xn,Xi

Risk Statements

12-65

Safety Statements

16-62-33-29-7/9

RIDADR

UN 2459

WGK Germany

Hazard Note

Irritant

TSCA

TSCA listed

HazardClass

PackingGroup

HS Code

29012990

Storage Class

3 - Flammable liquids

Hazard Classifications

Flam. Liq. 1

Hazardous Substances Data

563-46-2(Hazardous Substances Data)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (300g or 300ml)

NFPA 704

	4
2		0

2-Methyl-1-butene price More Price(12)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	257486	2-Methyl-1-butene 98%	563-46-2	25g	$247	2026-04-30	Buy
Sigma-Aldrich	66030	2-Methyl-1-butene analytical standard	563-46-2	5ml	$58	2022-05-15	Buy
Sigma-Aldrich	66030	2-Methyl-1-butene analytical standard	563-46-2	50mL	$358	2022-05-15	Buy
TCI Chemical	M0174	2-Methyl-1-butene >98.0%(GC)	563-46-2	25mL	$123	2026-04-30	Buy
TCI Chemical	M0174	2-Methyl-1-butene >98.0%(GC)	563-46-2	100mL	$320	2026-04-30	Buy

Product number	Packaging	Price	Buy
257486	25g	$247	Buy
66030	5ml	$58	Buy
66030	50mL	$358	Buy
M0174	25mL	$123	Buy
M0174	100mL	$320	Buy

2-Methyl-1-butene Chemical Properties, Uses, Production

Chemical Properties

colourless liquid

Uses

Organic synthesis, pesticide formulations.

Uses

2-Methyl-1-butene is used as a solvent in organic synthesis. It is also used in the preparation of pinacolone, flavor enhancer, spice, crop protectants and tertiary amyl phenol. Further, it serves as a photosensitive material and concrete dispersant. In addition to this, it is used as a fuel and fuel additive.

Definition

ChEBI: An alkene that is but-1-ene carrying a methyl substituent at position 2.

General Description

A colorless volatile liquid with a disagreeable odor. Insoluble in water and less dense than water. Flash point below 0°F. Vapors are heavier than air. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

The unsaturated aliphatic hydrocarbons, such as 2-METHYL-1-BUTENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions.

Hazard

Highly flammable, dangerous fire and explosion risk.

Health Hazard

Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Safety Profile

A simple asphyxiant. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. To fight fire, use dry chemical, CO2, foam. When heated to decomposition it emits acrid smoke and irritating fumes.

2-Methyl-1-butene Preparation Products And Raw materials

Raw materials

Ethylene

Preparation Products

ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Triadimefon Methyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-(1-cyclopropane)carboxylate pinacolone，tert-butyl methy1 ketone，3，3-dimethyl-2-butyl ketone cis-3,4-Dimethyl-2-pentene

2-Methyl-2-pentene cis-3-Methyl-2-pentene 2-Methyl-2-butanethiol 1,1-Dimethylpropyl ethyl ether 2,3-Dimethyl-2-pentene

3-Methyl-1-phenyl-2-phospholene 1-oxide tert-Amylbenzene 2-Methyl-2-butene 1-Butene trichloro(2-methylbutyl)silane

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2-Methyl-1-butene Suppliers

Global Suppliers ( 88)

Supplier	Tel	Email	Country	ProdList	Advantage
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Tianjin heowns Biochemical Technology Co., Ltd.	400 638 7771	sales@heowns.com	China	14412	57
Sinopharm Chemical Reagent Co,Ltd.	86-21-63210123	sj_scrc@sinopharm.com	China	9791	79
Maya High Purity Chemicals	+86 (573) 82222445 (0)18006601000 452520369	sales@maya-r.com	China	11693	57
Shanghai T&W Pharmaceutical Co., Ltd.	+86 21 61551611		China	9874	58
TOKYO CHEMICAL INDUSTRY CO., LTD.	03-36680489	Sales-JP@TCIchemicals.com	Japan	28364	80
TCI Europe	320-37350700	sales@tcieurope.eu	Europe	23654	75
TCI AMERICA	800-4238616	sales@tciamerica.com	Americas	23636	75
Shanghai BeiZhuo Biotech Co., Ltd.	021-61119791,13386096464	bzswkf@foxmail.com	China	3916	50

Supplier	Advantage
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Tianjin heowns Biochemical Technology Co., Ltd.	57
Sinopharm Chemical Reagent Co,Ltd.	79
Maya High Purity Chemicals	57
Shanghai T&W Pharmaceutical Co., Ltd.	58
TOKYO CHEMICAL INDUSTRY CO., LTD.	80
TCI Europe	75
TCI AMERICA	75
Shanghai BeiZhuo Biotech Co., Ltd.	50

View Latest Price from 2-Methyl-1-butene manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-02	2-METHYL-1-BUTENE 563-46-2	$1.00-100.00	1KG	99%		Henan Fengda Chemical Co., Ltd
2023-05-27	2-Methyl-1-butene 563-46-2	$1.00	1kg	99.99%	50000tons	Henan Bao Enluo International TradeCo.，LTD
2020-01-10	2-METHYL-1-BUTENE 563-46-2	$1.00	1KG	98% HPLC	10 tons/month	Career Henan Chemical Co

2-METHYL-1-BUTENE
563-46-2
$1.00-100.00
99%
Henan Fengda Chemical Co., Ltd

2-Methyl-1-butene
563-46-2
$1.00
99.99%
Henan Bao Enluo International TradeCo.，LTD

2-METHYL-1-BUTENE
563-46-2
$1.00
98% HPLC
Career Henan Chemical Co

2-Methyl-1-butene Spectrum

2-METHYL-1-BUTENE(563-46-2)MS 2-METHYL-1-BUTENE(563-46-2)¹HNMR 2-METHYL-1-BUTENE(563-46-2)¹³CNMR 2-METHYL-1-BUTENE(563-46-2)IR1 2-METHYL-1-BUTENE(563-46-2)IR2 2-METHYL-1-BUTENE(563-46-2)Raman

563-46-2 (2-Methyl-1-butene) Related Search:

1-Cyclopentenecarboxylic acid GERANYL BROMIDE Colchicine 1,2,3,4,5-Pentamethylcyclopentadiene beta-Pinene

ITACONYL CHLORIDE ZEATIN MIXED ISOMERS-PLANT CELL CULTURE& (E,Z)-2-(2-Benzyloxycarbonylamino-4-thiazol)-4-(3-methyl-2-butenyloxycarbonyl)-2-butenoic acid 1-Chloro-3-methyl-2-butene Prenyl acetate

1,4,5,8,9,10-Hexahydroanthracene (1R)-(-)-Myrtenol (-)-Verbenone alpha-Pinene 3-Carene

1,2,3,4-Tetraphenyl-1,3-cyclopentadiene 3-Methylenecyclopropane-trans-1,2-dicarboxylic acid (1R)-(+)-alpha-Pinene

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1-butene,2-methyl- 1-Isoamylene 2-methylbutene-1(99%min.) C2H5C(CH3)=CH2 2-Methylbutene 2-METHYLBUTENE-1 2-Methylbutene-1 (99% 2-METHYL-1-BUTENE, STANDARD FOR GC 1-ethyl-1-methylethylene 2-METHYL-1-BUTENE 98+% Methyl-1-butene, 2- 2-Methylbutane-1-ene 2-Methyl-1-butene> 2-METHYL-1-BUTENE ISO 9001：2015 REACH tianuf-chem_2-METHYL-1-BUTENE,563-46-2 2-methyl-but-1-ene 2-methyl-1-buten gamma-Isoamylene 2-Methyl-1-butene / Isopentene 2-Methyl-1-butene 563-46-2 C2H5CH3CCH2 563462 CH3CH2CCH3CH2 Building Blocks Analytical Standards Analytical Chromatography Product Catalog Acyclic Alkenes Alphabetic META - METH Organic Building Blocks Building Blocks Chemical Synthesis Organic Building Blocks Acyclic Alkenes Organic Building Blocks Alpha Sort Hydrocarbons M MAlphabetic META - METHChemical Class NeatsGasoline, Diesel,&Petroleum Olefins Substance classes Volatiles/ Semivolatiles