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611-23-4

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Basic Information
CAS No.: 611-23-4
Name: 2-Nitrosotoluene
Article Data: 41
Molecular Structure:
Molecular Structure of 611-23-4 (2-Nitrosotoluene)
Formula: C7H7NO
Molecular Weight: 121.139
Synonyms: Toluene,o-nitroso- (6CI,7CI,8CI);1-Methyl-2-nitrosobenzene;2-Methyl-1-nitrosobenzene;2-Methylnitrosobenzene;
EINECS: 210-261-4
Density: 1.03 g/cm3
Melting Point: 72-75 °C(lit.)
Boiling Point: 199.9 °C at 760 mmHg
Flash Point: 74.7 °C
Appearance: colorless solid
Hazard Symbols: HarmfulXn
Risk Codes: 20/21/22-36/37/38
Safety: 26-36
PSA: 29.43000
LogP: 2.39290
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Chemistry

IUPAC Name: 1-Methyl-2-Nitrosobenzene
Product Categories: Nitrogen Compounds ; Nitroso Compounds ; Organic Building Blocks 
Molecular Formula: C7H7NO 
Molecular Weight: 121.14 g/mol
EINECS: 210-261-4 
Density: 1.03 g/cm3
Melting Point: 72-75 °C(lit.)
Flash Point: 74.7 °C
Boiling Point: 199.9 °C at 760 mmHg
Vapour Pressure: 0.472 mmHg at 25°C 
Index of Refraction: 1.524
Molar Refractivity: 35.97 cm3
Molar Volume: 117.5 cm3
Surface Tension: 35.8 dyne/cm
Enthalpy of Vaporization: 41.83 kJ/mol
Refractive Index:  0-6°C 
Storage Temp.: 0-6 °C
Stability: Stable. Incompatible with oxidizing agents. 
The molecular structure of 2-Nitrosotoluene (CAS NO.611-23-4):

Toxicity Data With Reference

1.    

mmo-sat 1 µmol/plate

     IJEBA6    Indian Journal of Experimental Biology. 25 (1987),618.

Safety Profile

Questionable carcinogen with experimental carcinogenic data. Mutation data reported. Many nitroso compounds are carcinogens. When heated to decomposition it emits toxic fumes of NOx. See also NITROSO COMPOUNDS.
Hazard Codes: HarmfulXn
Risk Statements: 20/21/22-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
RTECS: XT3400000

Specification

 2-Nitrosotoluene (CAS NO.611-23-4) is also named as 1-Methyl-2-nitrosobenzene ; 2-Methyl-1-nitrosobenzene ; 2-Methylnitrosobenzene ; 4-05-00-00844 (Beilstein Handbook Reference) ; BRN 1927295 ; CCRIS 480 ; NSC 66507 ; o-Methylnitrosobenzene ; o-Nitrosotoluene . 2-Nitrosotoluene (CAS NO.611-23-4) is a colorless solid.