The Dichlorophenylphosphine, with the CAS registry number 644-97-3, is also known as Phenyldichlorophosphine. It belongs to the product categories of Chlorophosphines; Pharmaceutical Intermediates; Ligand; Organophosphine halide. Its EINECS number is 211-425-8. This chemical's molecular formula is C₆H₅Cl₂P and molecular weight is 178.98. What's more, its systematic name is Phenylphosphonous dichloride. This colourless viscous liquid is commonly used in the synthesis of phosphine ligands. Dichlorophenylphosphine is commercially available. It may be prepared by a electrophilic substitution of benzene by phosphorus trichloride, catalyzed by aluminium chloride. This chemical should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides, acids, heat and fire.

Physical properties of Dichlorophenylphosphine are: (1)ACD/LogP: 2.421; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.42; (4)ACD/LogD (pH 7.4): 2.42; (5)ACD/BCF (pH 5.5): 40.76; (6)ACD/BCF (pH 7.4): 40.76; (7)ACD/KOC (pH 5.5): 494.52; (8)ACD/KOC (pH 7.4): 494.52; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 13.59 Å²; (13)Flash Point: 89.272 °C; (14)Enthalpy of Vaporization: 44.176 kJ/mol; (15)Boiling Point: 224 °C at 760 mmHg; (16)Vapour Pressure: 0.1 mmHg at 25°C.

Preparation: this chemical can be prepared by benzene by heating. This reaction will need reagents PCl₃, AlCl₃ with the reaction time of 3 hours. The yield is about 96%.

Uses of Dichlorophenylphosphine: it can be used to produce phenyl-phosphonous acid diisopropyl ester at the ambient temperature. It will need reagent pyridine and solvent hexane with the reaction time of 3 hours. The yield is about 76%.

When you are using this chemical, please be cautious about it as the following:
This chemical can cause buins, and is spontaneously flammable in air. When contact with water, it will liberate toxic gas. It is toxic if swallowed. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. After contact with skin, you must wash immediately with plenty of ... (to be specified by the manufacturer). When using it, you need wear suitable protective clothing, gloves and eye/face protection. 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). In case of accident or if you feel unwell, you need to seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: ClP(Cl)c1ccccc1
(2)Std. InChI: InChI=1S/C6H5Cl2P/c7-9(8)6-4-2-1-3-5-6/h1-5H
(3)Std. InChIKey: IMDXZWRLUZPMDH-UHFFFAOYSA-N

The toxicity data is as follows: