1,2-dichloro-4-fluoro-5-nitrobenzene (2339-78-8) is called for Buttpark 89\07-58 ; 4,5-Dichloro-2-fluoronitrobenzene ; 4,5-Dichloro-2-fluoronitrobenzene 95% ; 3,4-Dichloro-2-fluoro-1-nitrobenzene ,and so on.

CAS: 2339-78-8
Molecular Formula: C₆H₂Cl₂FNO₂
Molecular Weight: 209.99
Molecular structure:
Melting point:  17 °C(lit.)
ACD/LogD (pH 5.5): 2.41 
ACD/LogD (pH 7.4): 2.41 
ACD/BCF (pH 5.5): 40.26 
ACD/BCF (pH 7.4): 40.26 
ACD/KOC (pH 5.5): 490.2 
ACD/KOC (pH 7.4): 490.2 
H bond acceptors: 3 
H bond donors: 0 
Freely Rotating Bonds: 1
Index of Refraction: 1.572 
Molar Refractivity: 42.58 cm³ 
Molar Volume: 129.3 cm³
Polarizability: 16.88 10^-24cm ³ 
Surface Tension: 48.5 dyne/cm 
Density: 1.622 g/cm³ 
Flash Point: 115.3 °C 
Enthalpy of Vaporization: 46.45 kJ/mol 
Boiling Point: 247 °C at 760 mmHg 
Vapour Pressure: 0.0413 mmHg at 25°C  
 

 1,2-dichloro-4-fluoro-5-nitrobenzene (2339-78-8) is commonly used as pharmaceutical intermediate and raw material.

Hazard Codes:  Xn,Xi
Risk Statements:  20/21/22-36/37/38 (20/21/22:  Harmful by inhalation, in contact with skin and if swallowed 36/37/38:  Irritating to eyes, respiratory system and skin)
Safety Statements:  26-37/39 (26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 37/39:  Wear suitable gloves and eye/face protection)
WGK Germany:  3
Hazard Note:  Irritant

Removal in wastewater treatment of 1,2-dichloro-4-fluoro-5-nitrobenzene (2339-78-8) can be stated as follows:
Total removal:13.14  percent
Total biodegradation:0.15  percent
Total sludge adsorption:8.86  percent
Total to Air:4.13  percent
(using 10000 hr Bio P,A,S)