ChemicalBook--->CAS DataBase List--->931-88-4

931-88-4

931-88-4 Structure

931-88-4 Structure
IdentificationMore
[Name]

cis-Cyclooctene
[CAS]

931-88-4
[Synonyms]

CIS-CYCLOOCTENE
CYCLOOCTENE
CYCLOOCTENE, STANDARD FOR GC
[EINECS(EC#)]

213-245-5
[Molecular Formula]

C8H14
[MDL Number]

MFCD00001753
[Molecular Weight]

110.2
[MOL File]

931-88-4.mol
Chemical PropertiesBack Directory
[Melting point ]

−16 °C(lit.)
[Boiling point ]

32-34 °C12 mm Hg(lit.)
[density ]

0.848 g/mL at 20 °C(lit.)
[refractive index ]

n20/D 1.470
[Fp ]

77 °F
[Water Solubility ]

Insoluble in water
[form ]

neat
[color ]

Colorless to Almost colorless
[BRN ]

1901031
[LogP]

3.930
[CAS DataBase Reference]

931-88-4(CAS DataBase Reference)
[NIST Chemistry Reference]

Cyclooctene(931-88-4)
[EPA Substance Registry System]

931-88-4(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R10:Flammable.
R65:Harmful: May cause lung damage if swallowed.
[Safety Statements ]

S29:Do not empty into drains .
S33:Take precautionary measures against static discharges .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S16:Keep away from sources of ignition-No smoking .
[RIDADR ]

UN 3295 3/PG 3
[WGK Germany ]

3
[HS Code ]

2902.19.0050
[HazardClass ]

3.2
[PackingGroup ]

III
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

cis-Cyclooctene(931-88-4).msds
Spectrum DetailBack Directory
[Spectrum Detail]

cis-Cyclooctene(931-88-4)MS
cis-Cyclooctene(931-88-4)1HNMR
cis-Cyclooctene(931-88-4)13CNMR
cis-Cyclooctene(931-88-4)IR1
cis-Cyclooctene(931-88-4)Raman
Well-known Reagent Company Product InformationBack Directory
[TCI AMERICA]

Cyclooctene,>95.0%(GC)(931-88-4)
Hazard InformationBack Directory
[Purification Methods]

The cis-isomer is freed from the trans-isomer by fractional distillation through a spinning-band column, followed by preparative gas chromatography on a Dowex 710-Chromosorb W GLC column. It is passed through a short alumina column immediately before use [Collman et al. J Am Chem Soc 108 2588 1986]. It has also been distilled in a dry N2 glove box from powdered fused NaOH through a Vigreux column (p 11), then passed through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 4328 1987]. Alternatively it can be purified via the AgNO3 salt. This salt is obtained from crude cyclooctene (40 mL) by shaking at 70-80o with 50% w/w AgNO3 (2 x 15 mL) to remove cyclooctadienes (aqueous layer). Extraction is repeated at 40o (4 x 20 mL, of 50% AgNO3). Three layers are formed each time. The middle layer contains the AgNO3 adduct of cyclooctene which crystallises on cooling the layer to room temperature. The adduct (complex 2:1) is highly soluble in MeOH (at least 1g/mL) from which it crystallises in large flat needles when cooled at 0o. It is dried under slight vacuum for 1 week in the presence of CaCl2 and paraffin wax soaked in cyclooctene. It has m 51o and loses hydrocarbon on exposure to air. cis-Cyclooctene can be recovered by steam distillation of the salt, collected, dried (CaCl2) and distilled in vacuum. [Braude et al. J Chem Soc 4711 1957, AgNO3: Jones J Chem Soc 1808 1954, Cope & Estes J Am Chem Soc 72 1128 1950, Beilstein 5 I 35, 5 IV 263.] FLAMMABLE LIQUID.
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