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EINECS 605-126-5
CAS No. 15803-02-8 Density 1.69 g/cm3
PSA 17.82000 LogP 1.18260
Solubility N/A Melting Point 185-188 °C
Formula C4H5BrN2 Boiling Point 197.1 °C at 760 mmHg
Molecular Weight 161.001 Flash Point 73 °C
Transport Information N/A Appearance N/A
Safety 26-39 Risk Codes 37/38-41
Molecular Structure Molecular Structure of 15803-02-8 (4-Bromo-1-methylpyrazole) Hazard Symbols IrritantXi

Pyrazole,4-bromo-1-methyl- (8CI);1-Methyl-4-bromopyrazole;4-Bromo-1-methyl-1H-pyrazole;

Article Data 20

4-Bromo-1-methylpyrazole Chemical Properties

IUPAC Name: 4-Bromo-1-methylpyrazole
Systematic of 1H-Pyrazole,4-bromo-1-methyl- (CAS NO.15803-02-8): 4-Bromo-1-methyl-1h-pyrazole ; 4-Bromo-1-methylpyrazole ; 1-Mehtyl-4-Bromo-1H-Pyrazole ; 1-Methyl-4-bromo-1H-pyrazole
CAS NO: 15803-02-8
Molecular Formula of 1H-Pyrazole,4-bromo-1-methyl- (CAS NO.15803-02-8): C4H5BrN2
Molecular Weight: 160.9999
Molecular Structure:

H bond acceptors: 2  
Polar Surface Area: 17.82 Å2
Index of Refraction: 1.606
Molar Refractivity: 32.8 cm3
Molar Volume: 95.1 cm3
Surface Tension: 43.2 dyne/cm
Density of 1H-Pyrazole,4-bromo-1-methyl- (CAS NO.15803-02-8): 1.69 g/cm3
Flash Point: 73 °C
Enthalpy of Vaporization: 41.55 kJ/mol
Boiling Point: 197.1 °C at 760 mmHg
Vapour Pressure: 0.543 mmHg at 25°C

4-Bromo-1-methylpyrazole Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 37/38-41 
R37/38: Irritating to respiratory system and skin. 
R41: Risk of serious damage to the eyes.
Safety Statements: 26-39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S39: Wear eye / face protection.
HazardClass: IRRITANT

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