Benzaldehyde,5-chloro-2-nitro-

 2-Nitro-5-chlorobenzaldehyde (6628-86-0) is called for 5-Chloro-2-nitrobenzaldehyde ; TIMTEC-BB SBB003713 ; 5-Chloro-2-nitrobenzaldehyde 2-nitro-5-Chlorobenzaldehyde ; 5-Chloro-2-nitrobenzaldehyde, tech. ; 5-Chloro-2-nitrobenzaldehyde, 99+% ; 2-Nirtro -5-chlorobenzaldehyde ; Benzaldehyde, 5-chloro-2-nitro- ; C58800_ALDRICH ; NSC59734 ; 25407_FLUKA ,and so on. 2-Nitro-5-chlorobenzaldehyde (6628-86-0) is slightly yellow powder and chunks.

IUPAC Name: 5-Chloro-2-nitrobenzaldehyde
CAS: 6628-86-0
Molecular Formula: C₇H₄ClNO₃
Molecular Weight: 185.56
Molecular structure:
EINECS: 229-614-9
Melting point:  65-69 °C(lit.) 
ACD/LogD (pH 5.5): 2.41 
ACD/LogD (pH 7.4): 2.41 
ACD/BCF (pH 5.5): 40.04 
ACD/BCF (pH 7.4): 40.04 
ACD/KOC (pH 5.5): 488.33 
ACD/KOC (pH 7.4): 488.33 
H bond acceptors: 4 
H bond donors: 0 
Freely Rotating Bonds: 2 
Index of Refraction: 1.63 
Molar Refractivity: 44.44 cm³ 
Molar Volume: 124.8 cm³ 
Polarizability: 17.61 10^-24cm³ 
Surface Tension: 57.3 dyne/cm 
Density: 1.485 g/cm³ 
Flash Point: 141.4 °C 
Enthalpy of Vaporization: 55.1 kJ/mol 
Boiling Point: 310.2 °C at 760 mmHg 
Vapour Pressure: 0.000608 mmHg at 25°C 

 2-Nitro-5-chlorobenzaldehyde (6628-86-0) is commonly used as pharmaceutical intermediate.

Hazard Codes:  Xi,C,F   
Risk Statements:  36/37/38-43-34-14/15 (36/37/38:  Irritating to eyes, respiratory system and skin 43:  May cause sensitization by skin contact 34:  Causes burns 14/15:  Reacts violently with water, liberating extremely flammable gases)
Safety Statements:  22-24/25-36/37-26-45-43-36/37/39-36-7/8 (22:  Do not breathe dust 24/25:  Avoid contact with skin and eyes  36/37:  Wear suitable protective clothing and gloves 26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) 43:  In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water) 36/37/39:  Wear suitable protective clothing, gloves and eye/face protection 36:  Wear suitable protective clothing 7/8:  Keep container tightly closed and dry)
RIDADR:  UN3077 9/PG 3
WGK Germany:  3
F:  10
Hazard Note:  Irritant

Removal in wastewater treatment of 2-Nitro-5-chlorobenzaldehyde (6628-86-0) can be stated as follows:
Total removal:2.45  percent
Total biodegradation:0.10  percent
Total sludge adsorption:2.34  percent
Total to Air:0.01  percent
(using 10000 hr Bio P,A,S)