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7641-77-2

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Basic Information
CAS No.: 7641-77-2
Name: 1,2,3,4,5,6-HEXAMETHYLBICYCLO[2.2.0]HEXA-2,5-DIENE
Article Data: 8
Molecular Structure:
Molecular Structure of 7641-77-2 (1,2,3,4,5,6-HEXAMETHYLBICYCLO[2.2.0]HEXA-2,5-DIENE)
Formula: C12H18
Molecular Weight: 162.275
Synonyms: Bicyclo[2.2.0]hexa-2,5-diene,hexamethyl- (7CI); 1,2,3,4,5,6-Hexamethylbicyclo[2.2.0]hexa-2,5-diene;Hexamethyl Dewar benzene; Hexamethylbicyclo[2.2.0]hexa-2,5-diene
Density: 0.803 g/mL at 25 °C(lit.)
Melting Point: 7 °C(lit.)
Boiling Point: 60 °C20 mm Hg(lit.)
Flash Point: 95 °F
Risk Codes: R10
Safety: Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and fumes.
PSA: 0.00000
LogP: 3.69900
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Chemistry

IUPAC Name: 1,2,3,4,5,6-Hexamethylbicyclo[2.2.0]hexa-2,5-diene
Synonyms of Hexamethylbicyclo(2.2.0)hexa-2,5-diene (CAS NO.7641-77-2) : 1,2,3,4,5,6-Hexamethylbicyclo[2.2.0]hexa-2,5-diene ; bicyclo[2.2.0]Hexa-2,5-diene, 1,2,3,4,5,6-hexamethyl ; Hexamethyl-bicyclo(2.2.0)hexa-2,5-dienBicyclo(2.2.0)hexa-2,5-diene, hexamethyl-
CAS NO: 7641-77-2
Molecular Formula:C12H18
Molecular Weight :162.27
Molecular Structure :
EINECS: 231-576-3
Index of Refraction:1.515
Surface Tension: 28.2 dyne/cm
Density: 0.924 g/cm3
Flash Point: 35 °C
Enthalpy of Vaporization: 38.21 kJ/mol
Boiling Point: 161.9 °C at 760 mmHg
Vapour Pressure: 2.9 mmHg at 25°C
Melting point: 7 °C(lit.)
Storage Temp: 0-6°C
Appearance: Hexamethylbicyclo(2.2.0)hexa-2,5-diene (CAS NO.7641-77-2) is clear yellow liquid.

Safety Profile

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and fumes

Risk Statements 
R10: Hexamethylbicyclo(2.2.0)hexa-2,5-diene (CAS NO.7641-77-2) is flammable. 
Safety Statements 16-33-36/37/39
S16:Keep away from sources of ignition. 
S33:Take precautionary measures against static discharges. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR UN 3295 3/PG 3
WGK Germany 3
RTECS DT7320000
HazardClass 3.2
PackingGroup III .

Specification

Handling: Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame.
Storage: Keep away from heat, sparks, and flame. Refrigerator/flammables.