3,5-Difluorobenzyl chloride (220141-71-9) is also named as Benzene, 1-(chloromethyl)-3,5-difluoro- (9CI) ; 3,5-Difluorobenzyl chloride 98% ; 3,5-Difluorobenzylchloride98% ; CID2736955 ; 1-(chloromethyl)-3,5-difluoro-benzene ; BBV-5726013 ; D213 ,and so on.

CAS: 220141-71-9
Molecular Formula: C₇H₅ClF₂
Molecular Weight: 162.56
Molecular structure:
Sensitive:  Lachrymatory
BRN:  7473788
ACD/LogD (pH 5.5): 2.63 
ACD/LogD (pH 7.4): 2.63 
ACD/BCF (pH 5.5): 58.51 
ACD/BCF (pH 7.4): 58.51 
ACD/KOC (pH 5.5): 640.58 
ACD/KOC (pH 7.4): 640.58 
H bond acceptors: 0 
H bond donors: 0 
Freely Rotating Bonds: 1 
Index of Refraction: 1.485 
Molar Refractivity: 36 cm³ 
Molar Volume: 125.5 cm³ 
Polarizability: 14.27 10^-24cm³ 
Surface Tension: 31.2 dyne/cm 
Density: 1.294 g/cm³ 
Flash Point: 56.2 °C
Enthalpy of Vaporization: 38.45 kJ/mol 
Boiling Point: 164.5 °C at 760 mmHg 
Vapour Pressure: 2.57 mmHg at 25°C 

3,5-Difluorobenzyl chloride (220141-71-9) is commonly used as pharmaceutical intermediate.

Hazard Codes:  C
Risk Statements:  34 (34:  Causes burns)
Safety Statements:  26-36/37/39-45 (26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 36/37/39:  Wear suitable protective clothing, gloves and eye/face protection 45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible))
RIDADR:  3265
Hazard Note:  Corrosive/Lachrymatory
HazardClass:  8
PackingGroup:  II

Removal in wastewater treatment of 3,5-Difluorobenzyl chloride (220141-71-9) can be stated as follows:
Total removal:57.91  percent
Total biodegradation:0.08  percent
Total sludge adsorption:5.52  percent
Total to Air:52.31  percent
(using 10000 hr Bio P,A,S)