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1,3,5-Trimethylpyrazole

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Name

1,3,5-Trimethylpyrazole

EINECS 214-023-0
CAS No. 1072-91-9 Density 0.974 g/cm3
PSA 17.82000 LogP 1.03690
Solubility N/A Melting Point 38-41 °C(lit.)
Formula C6H10N2 Boiling Point 159.126 °C at 760 mmHg
Molecular Weight 110.159 Flash Point 50.038 °C
Transport Information UN 1325 4.1/PG 3 Appearance White low-melting solid
Safety 16-26-36 Risk Codes 10-36/37/38
Molecular Structure Molecular Structure of 1072-91-9 (1,3,5-Trimethylpyrazole) Hazard Symbols IrritantXi, FlammableF
Synonyms

1,3,5-Trimethyl pyrazole;Pyrazole,1,3,5-trimethyl- (6CI,7CI,8CI);1,3,5-Trimethyl-1H-pyrazole;

Article Data 2

1,3,5-Trimethylpyrazole Chemical Properties

IUPAC Name: 1,3,5-Trimethylpyrazole
Synonyms of 1H-Pyrazole,1,3,5-trimethyl- (CAS NO.1072-91-9): 1,3,5-Trimethylpyrazole
CAS NO: 1072-91-9
Molecular Formula of 1H-Pyrazole,1,3,5-trimethyl- (CAS NO.1072-91-9): C6H10N2
Molecular Weight: 110.157
Molecular Structure:

Melting point: 38-41 °C
H bond acceptors: 2
Polar Surface Area: 17.82 Å2
Index of Refraction: 1.514
Molar Refractivity: 34.09 cm3
Molar Volume: 113.1 cm3
Surface Tension: 29 dyne/cm
Density of 1H-Pyrazole,1,3,5-trimethyl- (CAS NO.1072-91-9): 0.97 g/cm3
Flash Point: 50 °C
Enthalpy of Vaporization: 37.95 kJ/mol
Boiling Point: 159.1 °C at 760 mmHg
Vapour Pressure: 3.3 mmHg at 25°C

1,3,5-Trimethylpyrazole Safety Profile

Hazard Codes: IrritantXi,FlammableF
Risk Statements: 10-36/37/38 
R10: Flammable. 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 16-26-36 
S16: Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36: Wear suitable protective clothing.
RIDADR: UN 1325 4.1/PG 3
WGK Germany: 3
Hazard Note: Flammable
HazardClass: 3
PackingGroup: III

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