This product is an organic compound with the formula C₇H₃Cl₃O. The systematic name of this chemical is 3,4-Dichlorobenzoyl chloride. It belongs to the product categories of Acidhalide; Organics; API intermediates; Acid Halides; Carbonyl Compounds; Organic Building Blocks. Its EINECS number is 221-177-2. With the CAS registry number 3024-72-4, it is also named as Benzoylchloride, 3,4-dichloro-. In addition, the molecular weight is 209.46. It should be sealed and stored in a cool and dry place as it is moisture sensitive. It is stable under normal pressures and temperatures. 

Physical properties of 3,4-Dichlorobenzoyl chloride are: (1)ACD/LogP: 3.64; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.64; (4)ACD/LogD (pH 7.4): 3.64; (5)ACD/BCF (pH 5.5): 346.56; (6)ACD/BCF (pH 7.4): 346.56; (7)ACD/KOC (pH 5.5): 2288.67; (8)ACD/KOC (pH 7.4): 2288.67; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 17.07 Å²; (13)Index of Refraction: 1.576; (14)Molar Refractivity: 46.28 cm³; (15)Molar Volume: 139.7 cm³; (16)Polarizability: 18.34×10^-24cm³; (17)Surface Tension: 45.4 dyne/cm; (18)Density: 1.498 g/cm³; (19)Flash Point: 142.2 °C; (20)Enthalpy of Vaporization: 47.9 kJ/mol; (21)Boiling Point: 242 °C at 760 mmHg; (22)Vapour Pressure: 0.0348 mmHg at 25°C.

Uses of 3,4-Dichlorobenzoyl chloride: it can be used to produce 2-acetylphenyl-3,4-dichlorobenzoate. It will need reagent 4-(dimethylamino)pyridine and solvent pyridine with the reaction time of 1 hour. The yield is about 78%.

When you are using this chemical, please be cautious about it as the following:
This chemical can cause burns. It is irritating to eyes, respiratory system and skin. You should take off immediately all contaminated clothing. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, you must seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)InChI: InChI=1S/C7H3Cl3O/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3H
(2)InChIKey: VTXNOVCTHUBABW-UHFFFAOYSA-N
(3)Canonical SMILES: C1=CC(=C(C=C1C(=O)Cl)Cl)Cl