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5203-77-0

Basic Information
CAS No.: 5203-77-0
Name: 1,3-Dimethyl-5-hydroxypyrazole
Article Data: 13
Molecular Structure:
Molecular Structure of 5203-77-0 (1,3-Dimethyl-5-hydroxypyrazole)
Formula: C5H8N2O
Molecular Weight: 112.131
Synonyms: Pyrazol-5-ol,1,3-dimethyl- (6CI,7CI,8CI);1,3-Dimethyl-1H-pyrazol-5-ol;1H-Pyrazol-5-ol,1,3-dimethyl-;
Density: 1.178 g/cm3
Melting Point: 113-117 °C
Boiling Point: 225.905 °C at 760 mmHg
Flash Point: 90.425 °C
Appearance: white to light yellow crystal powder
Hazard Symbols: Xn
Risk Codes: 22
PSA: 38.05000
LogP: 0.43410
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  • 1,3-dimethyl-1H-pyrazol-5-ol

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  • 5-Hydroxy-1,3-dimethylpyrazole

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    5-Hydroxy-1,3-dimethylpyrazole

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    1,3-Dimethyl-5-hydroxypyrazole

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Chemistry


Systematic Name: 1,3-Dimethyl-1H-pyrazol-5-ol 
Empirical Formula: C5H8N2O
Molecular Weight: 112.1298
SMILES: Cc1cc(O)n(C)n1 
InChI: InChI=1/C5H8N2O/c1-4-3-5(8)7(2)6-4/h3,8H,1-2H3
InChIKey: RAECFQNUIFBPCT-UHFFFAOYAC
Product Categories: Pyrazole 
Index of Refraction: 1.554
Molar Refractivity: 30.526 cm3
Molar Volume: 95.189 cm3
Surface Tension: 38.499 dyne/cm
Density: 1.178 g/cm3
Flash Point: 90.425 °C
Enthalpy of Vaporization: 48.124 kJ/mol
Boiling Point: 225.905 °C at 760 mmHg
Vapour Pressure: 0.056 mmHg at 25 °C 
Appearance: white to light yellow crystal powder
Melting Point of 5-Hydroxy-1,3-dimethylpyrazole (CAS NO.5203-77-0): 113-117 °C

Specification

  5-Hydroxy-1,3-dimethylpyrazole (CAS NO.5203-77-0), its Synonyms are 1,3-Dimethyl-1H-pyrazol-5-ol ; 1,3-Dimethyl-5-hydroxypyrazole ; 2,5-Dimethyl-1,2-dihydropyrazol-3-one .