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5-Bromo-1-pentene

Product Name
5-Bromo-1-pentene
CAS No.
1119-51-3
Chemical Name
5-Bromo-1-pentene
Synonyms
5-bromopent-1-ene;5-bromo-pent-1-ene;5c;5-b;5-Bromopentene;5-bromo-1-penten;-Bromo-1-pentene;5-BROMOPENTENE-1;5-bromo-2-pentene;3-Pentenylbromide
CBNumber
CB5251555
Molecular Formula
C5H9Br
Formula Weight
149.03
MOL File
1119-51-3.mol
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5-Bromo-1-pentene Property

Melting point:
-106.7°C (estimate)
Boiling point:
126-127 °C/765 mmHg (lit.)
Density 
1.258 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.463(lit.)
Flash point:
30 °C
storage temp. 
2-8°C
solubility 
Chloroform, Ethyl Acetate
form 
Oil
color 
Clear Colourless
Specific Gravity
1.258
Water Solubility 
Immiscible with water.
BRN 
506077
InChIKey
LPNANKDXVBMDKE-UHFFFAOYSA-N
CAS DataBase Reference
1119-51-3(CAS DataBase Reference)
NIST Chemistry Reference
1-Pentene, 5-bromo-(1119-51-3)
EPA Substance Registry System
1-Pentene, 5-bromo- (1119-51-3)
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Safety

Hazard Codes 
Xi
Risk Statements 
10-36/37/38
Safety Statements 
26-24/25-16
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
8
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29033036
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
253901
Product name
5-Bromo-1-pentene
Purity
95%
Packaging
5g
Price
$112
Updated
2025/07/31
Sigma-Aldrich
Product number
253901
Product name
5-Bromo-1-pentene
Purity
95%
Packaging
25g
Price
$401
Updated
2025/07/31
TCI Chemical
Product number
B1474
Product name
5-Bromo-1-pentene
Purity
>95.0%(GC)
Packaging
5g
Price
$25
Updated
2025/07/31
TCI Chemical
Product number
B1474
Product name
5-Bromo-1-pentene
Purity
>95.0%(GC)
Packaging
25g
Price
$99
Updated
2025/07/31
TRC
Product number
B686310
Product name
5-Bromo-1-pentene
Packaging
5g
Price
$50
Updated
2021/12/16
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5-Bromo-1-pentene Chemical Properties,Usage,Production

Description

5-Bromo-1-pentene is an organic compound with a molecular weight of 149.03. The formula of this compound is C5H9Br. It is a colorless, transparent liquid. The molecular structure of this molecule contains both double bonds and bromine atoms, giving it the properties of olefins and halogenated hydrocarbons. It serves as the starting material for the synthesis of DL-histrionicotoxin and phenyl-ketone fatty acids. Additionally, it is a fundamental chemical and pharmaceutical intermediate, finding wide applications in the fields of medicine, pesticides, and material chemistry.

Chemical Properties

Clear colorless to yellow liquid

Uses

5-Bromo-1-pentene is widely utilized in the stereoselective synthesis of 7alpha-(3-carboxypropyl) estradiol. It plays an important role as starting material in the synthesis of a variety of compounds including DL-histrionicotoxin and benzophenone containing fatty acids.

Synthesis Reference(s)

Tetrahedron, 28, p. 675, 1972 DOI: 10.1016/0040-4020(72)84031-6

Synthesis

1,5-Dibromopentane (100 Kg), N, N-dimethylformamide (100 Kg), and hexamethylphosphoramide (6.2 Kg) were stirred and mixed, and then heated in an oil bath at 140°C for 4 h. Atmospheric distillation collects the fractions, and the collected fractions are washed twice with 100 Kg brine. The organic liquid is distilled to obtain product 5-Bromo-1-pentene.

5-Bromo-1-pentene Preparation Products And Raw materials

Raw materials

Preparation Products

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5-Bromo-1-pentene Suppliers

Chizhou Bluesky Chemical Co., Ltd.
Tel
15996451730
Email
719225026@qq.com
Country
China
ProdList
30
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58
Jiaxing Deyi Chemical Co., Ltd
Tel
0573-85866609 13588473046
Email
824930988@qq.com
Country
China
ProdList
7865
Advantage
58
Henan Junyuejian Biotechnology Co., LTD
Tel
1555-0142250 18661514130
Email
1035729108@qq.com
Country
China
ProdList
675
Advantage
58
Tongling LishidaChem Technology Co., Ltd
Tel
19064063435 18606623089
Email
2236291497@qq.com
Country
China
ProdList
180
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58
Qingxian Creasyn Pharmaceutical Technology Co., Ltd.
Tel
022-83945173 18622315263
Fax
QQ1559208715
Email
export@creasyn.com
Country
China
ProdList
490
Advantage
55
Wuhan Huaxiang Kejie Biotechnology Co., Ltd
Tel
027-86638848 18627828293
Email
3507625507@qq.com
Country
China
ProdList
1653
Advantage
58
Shandong Yuxuan Chemical Products Co., Ltd
Tel
15315790065 15315790065
Email
1748782088@qq.com
Country
China
ProdList
94
Advantage
58
Creasyn Finechem(Tianjin) Co., Ltd.
Tel
022-83946278 13820503911
Fax
022-83945176
Email
sales@creasyn.com
Country
China
ProdList
957
Advantage
68
Wuhan EnTai Technology Development Co,.Ltd
Tel
86-27-82330560
Fax
86-27-82330547
Email
2536851935@qq.com
Country
China
ProdList
347
Advantage
69
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
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View Lastest Price from 5-Bromo-1-pentene manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
5-Bromo-1-pentene 1119-51-3
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98
Supply Ability
10000KGS
Release date
2025-11-19
Shanghai Worldyang Chemical Co.,Ltd.
Product
5-Bromo-1-pentene 1119-51-3
Price
US $210.00/KG
Min. Order
1KG
Purity
0.99
Supply Ability
100kg
Release date
2025-11-05
.GZ HONESTCHEM CO.,LTD
Product
5-Bromo-1-pentene 1119-51-3
Price
US $1.00/g
Min. Order
300g
Purity
99.8%
Supply Ability
20 TONS
Release date
2025-10-22

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