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142-29-0

Supplier Related Products Identification Chemical Properties Safety Data Raw materials And Preparation Products Hazard Information Material Safety Data Sheet(MSDS) Spectrum Detail Well-known Reagent Company Product Information

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Identification

Name
Cyclopentene
CAS
142-29-0
Synonyms
1-Cyclopentene
Cyclopenten
CYCLOPENTENE, STAB.
Cyclopentene, tech., ca 90%
Cyclopcnten
Cyclopentene, 98+%
Cyclopentene, ca 90%, tech
Cyclopentene, tech.
EINECS(EC#)
205-532-9
Molecular Formula
C5H8
MDL Number
MFCD00001394
Molecular Weight
68.12
MOL File
142-29-0.mol

Chemical Properties

Appearance
colourless liquid with a petrol-like odour
mp 
−135 °C(lit.)

bp 
44-46 °C(lit.)

density 
0.771 g/mL at 25 °C(lit.)

vapor pressure 
20.89 psi ( 55 °C)

refractive index 
n20/D 1.421(lit.)

Fp 
<−30 °F

storage temp. 
0-6°C
Stability:
Stable. Highly flammable. Incompatible with strong oxidizing agents. Store cold.
Water Solubility 
immiscible
BRN 
635707
CAS DataBase Reference
142-29-0(CAS DataBase Reference)
NIST Chemistry Reference
Cyclopentene(142-29-0)
EPA Substance Registry System
142-29-0(EPA Substance)

Safety Data

Hazard Codes 
F,Xn
Risk Statements 
R11:Highly Flammable.
R21/22:Harmful in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R65:Harmful: May cause lung damage if swallowed.
R67:Vapors may cause drowsiness and dizziness.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S33:Take precautionary measures against static discharges .
S36:Wear suitable protective clothing .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
RIDADR 
UN 2246 3/PG 2

WGK Germany 
3

RTECS 
GY5950000

F 
10-23
HazardClass 
3
PackingGroup 
II
HS Code 
29021990
Safety Profile
Moderately toxic by ingestion and skin contact. A very dangerous fire hazard when exposed to flame or heat; can react with oxidning materials. Keep away from heat and open flame. To fight fire, use foam, CO2, dry chemical.

Raw materials And Preparation Products

Raw materials
Aluminum oxide -->1，3-Cyclopentadiene-->Dicyclopentadiene-->Isoprene-->Cyclopentanol
Preparation Products
1，3-Cyclopentadiene-->Sebacic acid-->2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one-->Ramipril-->LENAMPICILLIN-->Prostaglandin E1-->Ketamine hydrochloride-->KETAMINE RELATED COMPOUND A (50 MG) (1-[(2-CHLOROPHENYL)(METHYLIMINO)METHYL]CYLCOPENTA-NOL)-->2-Chlorophenyl cyclopentyl ketone-->ROSAPROSTOL-->Cyclopentene oxide-->3-Ethyl-2-hydroxy-2-cyclopenten-1-one

Hazard Information

General Description
A colorless liquid. Less dense than water and insoluble in water. Flash point below 0°F. Vapors heavier than air. Inhalation of high concentrations may be narcotic. Used to make rubber and plastics.
Reactivity Profile
CYCLOPENTENE(142-29-0) may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
Air & Water Reactions
Highly flammable. Insoluble in water.
Health Hazard
May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation.
Fire Hazard
Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback. Explosion may occur under fire condition.

Material Safety Data Sheet(MSDS)

msds information
Cyclopentene(142-29-0).msds

Spectrum Detail

Spectrum Detail
Cyclopentene(142-29-0) 13C NMR
Cyclopentene(142-29-0) IR1
Cyclopentene(142-29-0) 1H NMR
Cyclopentene(142-29-0) MS

Well-known Reagent Company Product Information

Acros Organics
Cyclopentene, tech., ca 90%(142-29-0)
Alfa Aesar
Cyclopentene, 98+%(142-29-0)
Sigma Aldrich
142-29-0(sigmaaldrich)
TCI AMERICA
Cyclopentene,>98.0%(GC)(142-29-0)
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