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Chemical Name:
Molecular Formula:
Formula Weight:
MOL File:

CIS-2-PENTENE Properties

Melting point:
−180 °C(lit.)
Boiling point:
37-38 °C(lit.)
0.657 g/mL at 20 °C
vapor pressure 
8.17 psi ( 20 °C)
refractive index 
n20/D 1.382(lit.)
Flash point:
−1 °F
storage temp. 
Flammables area
Clear colorless
Stable. Highly flammable - note low flash point. Incompatible with oxidizing agents.
CAS DataBase Reference
627-20-3(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xn
Risk Statements  11-36/37/38-65
Safety Statements  9-16-26-29-33-36-62
RIDADR  UN 3295 3/PG 1
WGK Germany  3
HazardClass  3.1
PackingGroup  I
HS Code  29012990
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P331 Do NOT induce vomiting.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

CIS-2-PENTENE price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 143766 cis-2-Pentene 98% 627-20-3 1g $40.2 2018-11-13 Buy
Sigma-Aldrich 143766 cis-2-Pentene 98% 627-20-3 10g $239 2018-11-13 Buy
TCI Chemical P0065 cis-2-Pentene >95.0%(GC) 627-20-3 10mL $232 2018-11-22 Buy

CIS-2-PENTENE Chemical Properties,Uses,Production

Chemical Properties

colourless liquid

General Description

A colorless liquid with a hydrocarbon odor. Usually found as a technical grade consisting of a mixture of isomers. Insoluble in water. Used as a solvent in organic synthesis and as a polymerization inhibitor.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

The unsaturated aliphatic hydrocarbons, such as 2-PENTENE, 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.

Purification Methods

Dry it with sodium wire and fractionally distil it, or purify it by azeotropic distillation with MeOH, followed by washing out the MeOH with water, drying and distilling. Also purify it by chromatography through silica gel and alumina [Klassen & Ross J Phys Chem 91 3668 1987]. [Beilstein 1 IV 814.]

CIS-2-PENTENE Preparation Products And Raw materials

Raw materials

Preparation Products

CIS-2-PENTENE Suppliers

Global( 41)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32764 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15940 69
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 China 24654 81
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44192 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
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Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 China 14543 57
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
86-21-63290778 86-21-63218885 China 9975 79
Maya High Purity Chemicals +86 (573) 82222445 (0)18006601000 QQ:452520369
+86 (573) 82222643 China 11846 57
Shanghai LiuShi Pharmaceutical Technology Co., Ltd. 021-60135539
021-38721356 China 9954 55

CIS-2-PENTENE Spectrum

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