Cyclopentene 142-29-0 Large in promotion CAS NO.142-29-0

Synonyms: 1-Cyclopentene;Cyclopenten;CYCLOPENTENE, STAB.;Cyclopentene, tech., ca 90%;Cyclopcnten;Cyclopentene, 98+%;Cyclopentene, ca 90%, tech;Cyclopentene, tech.
CAS: 142-29-0
MF: C5H8
MW: 68.12
EINECS: 205-532-9
Product Categories: Pharmaceutical Intermediates;Alkenes;Cyclic;Organic Building Blocks
Mol File: 142-29-0.mol
Cyclopentene Structure
Cyclopentene Chemical Properties
Melting point  −135 °C(lit.)
Boiling point  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
solubility  water: soluble0.535g/L at 25°C
Water Solubility  immiscible
Sensitive  Air Sensitive
BRN  635707
Stability: Stable. Highly flammable. Incompatible with strong oxidizing agents. Store cold.
CAS DataBase Reference 142-29-0(CAS DataBase Reference)
NIST Chemistry Reference Cyclopentene(142-29-0)
EPA Substance Registry System Cyclopentene(142-29-0)
Safety Information
Hazard Codes  F,Xn
Risk Statements  11-21/22-36/37/38-65-67-52/53-38
Safety Statements  9-16-26-33-36-62-61-36/37
RIDADR  UN 2246 3/PG 2
WGK Germany  3
RTECS  GY5950000
F  10-23
TSCA  Yes
HazardClass  3
PackingGroup  II

Chemical Properties colourless liquid with a petrol-like odour
Definition ChEBI: A cycloalkene that is cyclopentane having one endocyclic double bond.
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.
Air & Water Reactions Highly flammable. Insoluble in water.
Reactivity Profile Cyclopentene 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.
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.
Cyclopentene Preparation Products And Raw materials
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