IUPAC Name: 2,4-Dichlorobenzoyl chloride 
Following is the structure of 2,4-Dichlorobenzoyl Chloride (CAS NO.89-75-8):
                          
Empirical Formula: C₇H₃Cl₃O
Molecular Weight: 209.4571
EINECS: 201-936-4
Index of Refraction: 1.576
Molar Refractivity: 46.28 cm³
Molar Volume: 139.7 cm³
Density: 1.498 g/cm³
Flash Point: 103.4 °C
Melting point: 28 °C(lit.)
Sensitive: Moisture Sensitive
Polarizability: 18.34 10^-24cm³
Surface Tension: 45.4 dyne/cm
Enthalpy of Vaporization: 48.92 kJ/mol
Boiling Point: 251.8 °C at 760 mmHg
Vapour Pressure: 0.02 mmHg at 25 °C
Appearance of 2,4-Dichlorobenzoyl Chloride (CAS NO.89-75-8): clear colorless to slightly colored liquid
Product Categories: ACIDHALIDE; Organics; Acid Halides; Carbonyl Compounds; Organic Building Blocks
Canonical SMILES: C1=CC(=C(C=C1Cl)Cl)C(=O)Cl
InChI: InChI=1S/C7H3Cl3O/c8-4-1-2-5(7(10)11)6(9)3-4/h1-3H
InChIKey: CEOCVKWBUWKBKA-UHFFFAOYSA-N

 2,4-Dichlorobenzoyl Chloride (CAS NO.89-75-8) is used as make dyes, medicine intermediates.

 2,4-Dichlorobenzoyl Chloride (CAS NO.89-75-8) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated. You can see actual entry in RTECS for complete information.

Hazard Codes: C
Risk Statements: 34-36/37 
R34:Causes burns. 
R36/37:Irritating to eyes and respiratory system.
Safety Statements: 26-27-36/37/39-45 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S27:Take off immediately all contaminated clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
RTECS: DM6636766
F: 10-19-21
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: II
HS Code: 29163900

 2,4-Dichlorobenzoyl Chloride , its cas register number 89-75-8. It also can be called AI3-14890 ; CCRIS 8616 ; 2,4-Dichlorobenzene-1-carbonyl chloride ; Benzoyl chloride, 2,4-dichloro- .
 2,4-Dichlorobenzoyl Chloride (CAS NO.89-75-8) should avoid the condition like incompatible materials, exposure to moist air or water. It is not compatible with strong oxidizing agents, strong bases.  And also prevent it to broken down into hazardous decomposition products: hydrogen chloride, carbon monoxide, carbon dioxide. However, its hazardous polymerization has not been reported.