MilliporeSigma
All Photos(2)

138924

Sigma-Aldrich

Cyclooctatetraene

98%

Synonym(s):
[8]Annulene
Empirical Formula (Hill Notation):
C8H8
CAS Number:
Molecular Weight:
104.15
Beilstein:
2496800
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

98%

form

liquid

contains

0.1% hydroquinone as inhibitor

refractive index

n20/D 1.537 (lit.)

bp

142-143 °C (lit.)

mp

−5-−3 °C (lit.)

density

0.925 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

C1=CC=CC=CC=C1

InChI

1S/C8H8/c1-2-4-6-8-7-5-3-1/h1-8H/b2-1-,3-1-,4-2-,5-3-,6-4-,7-5-,8-6-,8-7-

InChI key

KDUIUFJBNGTBMD-BONZMOEMSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Cyclooctatetraene is an 8p electron system and has a triplet ground state if the p electrons are delocalized. It is antiaromatic hence highly unstable and reactive. It adopts a non-planar boat conformation to attain stability with alternating single and double bonds and hence behaves like a polyolefin.
Cyclooctatetraene (COT) is a nonaromatic 4n π-conjugated system with a non-planar tub-shaped geometry and potential energy surfaces at the ground state.

Application

COT may be functionalized by two side groups which can be used as active anode materials for rechargeable batteries. High capacity and voltage organic cathodes may be developed by using COT that can be fused with carbon molecules.
  • Used in the synthesis of highly organic film for silicon surfaces to improve its chemical and physical properties.
  • Used in liquid state organic dye lasers.
  • Used as triplet state quencher to reduce dye blinking.

Packaging

1, 5 g in glass bottle

Signal Word

Danger

Hazard Classifications

Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

71.6 °F - closed cup

Flash Point(C)

22 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service