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2-Ethyl-1-butene

2-Ethyl-1-butene structure

CAS No.: 760-21-4

Chemical Name:: 2-Ethyl-1-butene

Synonyms: Pentane, 3-methylene-;3-METHYLENEPENTANE;3-methylidenepentane;ETHYLBUTENE;(C2H5)2C=CH2;2-Butyl-1-butene;2-Ethyl-1-butene;2-ethyl-but-1-ene;1,1-Diethylethene;1-Butene, 2-ethyl-

CBNumber:: CB0138802

Molecular Formula:: C6H12

Molecular Weight:: 84.16

MDL Number:: MFCD00009341

MOL File:: 760-21-4.mol

MSDS File:: SDS

Last updated:2026-09-12 18:43:55

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2-Ethyl-1-butene Properties

Melting point	−131.5-−131 °C(lit.)
Boiling point	64-65 °C(lit.)
Density	0.689 g/mL at 25 °C(lit.)
refractive index	n20/D 1.396(lit.)
Flash point	−15 °F
storage temp.	2-8°C
form	clear liquid
color	Colorless to Almost colorless
Water Solubility	Soluble in alcohol, and methanol. Insoluble in water.
BRN	1697102
Henry's Law Constant	2.7×10^-5 mol/(m³Pa) at 25℃, Yaws (2003)
InChI	1S/C6H12/c1-4-6(3)5-2/h3-5H2,1-2H3
InChIKey	RYKZRKKEYSRDNF-UHFFFAOYSA-N
SMILES	CCC(=C)CC
CAS DataBase Reference	760-21-4(CAS DataBase Reference)
FDA UNII	O5MH5V756E
EPA Substance Registry System	3-Methylenepentane (760-21-4)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS07,GHS08,GHS09

Signal word

Danger

Hazard statements

H315-H319-H304-H411-H225

Precautionary statements

P501-P273-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P391-P331-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P301+P310-P403+P235-P405

PPE

Eyeshields, Faceshields, Gloves

Hazard Codes

F,Xi,N

Risk Statements

11-43-51/53

Safety Statements

36/37-61

RIDADR

UN 3295 3/PG 2

WGK Germany

Autoignition Temperature

599 °F

TSCA

TSCA listed

HS Code

2901.29.5000

HazardClass

PackingGroup

Storage Class

3 - Flammable liquids

Hazard Classifications

Flam. Liq. 2
Skin Sens. 1

NFPA 704

	3
0		0

2-Ethyl-1-butene price More Price(8)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	E14705	2-Ethyl-1-butene 95%	760-21-4	5g	$92.9	2026-04-30	Buy
Sigma-Aldrich	E14705	2-Ethyl-1-butene 95%	760-21-4	25g	$210	2026-04-30	Buy
TCI Chemical	E0067	2-Ethyl-1-butene >97.0%(GC)	760-21-4	25mL	$143	2026-04-30	Buy
TCI Chemical	E0067	2-Ethyl-1-butene >97.0%(GC)	760-21-4	100mL	$404	2026-04-30	Buy
AHH	MT-12116	2-Ethyl-1-butene 97%		500ml	$638	2026-05-26	Buy

Product number	Packaging	Price	Buy
E14705	5g	$92.9	Buy
E14705	25g	$210	Buy
E0067	25mL	$143	Buy
E0067	100mL	$404	Buy
MT-12116	500ml	$638	Buy

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

Chemical Properties

Colorless liquid. Soluble in alcohol, acetone, ether, and benzene; insoluble in water. Combustible.

Uses

Organic synthesis of flavors, perfumes, medicines, dyes, resins.

Uses

2-Ethyl-1-butene is used as an intermediate in organic synthesis and pharmaceuticals.

Safety Profile

A human eye irritant. A very dangerous fire hazard when exposed to heat, flames, or oxidizers. To fight fire, use dry chemical, CO2, foam, spray. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Wash it with 10N aqueous NaOH, then water. Dry the organic layer with CaCl2, filter and fractionally distil it. [Beilstein 1 IV 850.]

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

Raw materials

trans-3-Methyl-2-pentene cis-3-Methyl-2-pentene 3-Methyl-1-pentene trans-3-Hexene cis-2-Hexene

Preparation Products

Oxirane, 2,2-diethyl-

2-Ethyl-1-butene Suppliers

Global( 67)Suppliers

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
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
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
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
Energy Chemical	61
Shanghai Hanhong Scientific Co.,Ltd.	64
Sinopharm Chemical Reagent Co,Ltd.	79
Maya High Purity Chemicals	57
TOKYO CHEMICAL INDUSTRY CO., LTD.	80
TCI Europe	75
TCI AMERICA	75
Shanghai BeiZhuo Biotech Co., Ltd.	50

View Lastest Price from 2-Ethyl-1-butene manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2021-08-11	2-ETHYL-1-BUTENE 760-21-4	$10.00-15.00	1KG	99%+ HPLC		Zhuozhou Wenxi import and Export Co., Ltd
	2021-07-02	2-Ethyl-1-butene 760-21-4	$10.00-15.00	1KG	99%+ HPLC		Zhuozhou Wenxi import and Export Co., Ltd

2-ETHYL-1-BUTENE
760-21-4
$10.00-15.00
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

2-Ethyl-1-butene
760-21-4
$10.00-15.00
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

2-Ethyl-1-butene Spectrum

2-ETHYL-1-BUTENE(760-21-4)MS 2-ETHYL-1-BUTENE(760-21-4)¹HNMR 2-ETHYL-1-BUTENE(760-21-4)¹³CNMR 2-ETHYL-1-BUTENE(760-21-4)IR1 2-ETHYL-1-BUTENE(760-21-4)IR2 2-ETHYL-1-BUTENE(760-21-4)Raman

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(C2H5)2C=CH2 1,1-Diethylethene 1-Butene, 2-ethyl- ETHYLBUTENE 2-ethyl-but-1-ene 3-methylene-pentan ethylate ethylMethacrylate 1,1-diethylethylene 2-Butyl-1-butene 2-Ethyl-1-butene 95% 2-Ethyl-1-butene> 2-ETHYL-1-BUTENE ISO 9001：2015 REACH 2-Ethyl-1-butene, 95%+ 2-Ethyl-1-butene, ≥ 97.0% Rivaroxaban Impurity 229 3-METHYLENEPENTANE 3-methylidenepentane Pentane, 3-methylene- 2-Ethyl-1-butene 760-21-4 H2CCC2H52 760214 CH3CH2CC2H5CH2 Organic Building Blocks Building Blocks Alkenes Acyclic Acyclic Alkenes Organic Building Blocks Building Blocks Chemical Synthesis Organic Building Blocks