IUPAC Name: 6-Ethyl-5-fluoro-1H-pyrimidin-4-one
Molecular Formula: C₆H₇FN₂O
Molecular Weight: 142.13 g/mol
Canonical SMILES: CCC1=C(C(=O)N=CN1)F
InChI: InChI=1S/C6H7FN2O/c1-2-4-5(7)6(10)9-3-8-4/h3H,2H2,1H3,(H,8,9,10)
EINECS: 422-460-5
Product Categories: Pyrimidine; APIs & Intermediate 
XLogP3-AA: 0.4  
H-Bond Donor: 1  
H-Bond Acceptor: 3
Surface Tension: 36.886 dyne/cm 
Density: 1.302 g/cm³ 
Flash Point: 63.1 °C 
Enthalpy of Vaporization: 41.699 kJ/mol 
Boiling Point: 180.724 °C at 760 mmHg 
Vapour Pressure of 6-Ethyl-5-fluoro-pyrimidin-4-ol (CAS NO.137234-87-8): 0.883 mmHg at 25 °C

Hazard Codes: Xi,N,Xn
Risk Statements: 22-50/53
R22: Harmful if swallowed. 
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 60-61 
S60: This material and its container must be disposed of as hazardous waste. 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
Hazard Note: Irritant
HazardClass of 6-Ethyl-5-fluoro-pyrimidin-4-ol (CAS NO.137234-87-8): Irritant

 6-Ethyl-5-fluoro-pyrimidin-4-ol (CAS NO.137234-87-8), its Synonyms are 4-Ethyl-5-fluoro-6-hydroxypyrimidine ; 6-Ethyl-5-fluoropyrimidin-4(3H)-one ; 6-Ethyl-5-fluoro-4(1H)-pyrimidinone ; 6-Ethyl-5-fluoropyrimidin-4-one ; 4(1H)-Pyrimidinone, 6-ethyl-5-fluoro- (9CI) ; 4-Hydroxy-5-fluoro-6-ethylpyrimidine .