The Phosphonous dichloride,P,P'-1,2-ethanediylbis-, with the CAS registry number 28240-69-9, has the sydtematic name of ethane-1,2-diylbis(phosphonous dichloride). It belongs to the following product categories: Ligand; Catalysis and Inorganic Chemistry; Phosphorus Compounds; Polydentate Phosphine Ligands. And the molecular formula of the chemical is C₂H₄Cl₄P₂.

The characteristics of Phosphonous dichloride,P,P'-1,2-ethanediylbis- are as followings: (1)ACD/LogP: 5.76; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.76; (4)ACD/LogD (pH 7.4): 5.76; (5)ACD/BCF (pH 5.5): 14006.35; (6)ACD/BCF (pH 7.4): 14006.35; (7)ACD/KOC (pH 5.5): 32324.16; (8)ACD/KOC (pH 7.4): 32324.16; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 27.18 Å²; (13)Flash Point: 104.6 °C; (14)Enthalpy of Vaporization: 46.69 kJ/mol; (15)Boiling Point: 249.4 °C at 760 mmHg; (16)Vapour Pressure: 0.0363 mmHg at 25°C.

Uses of Phosphonous dichloride,P,P'-1,2-ethanediylbis-: It can react with methanol to produce 1,2-bis(dimethoxyphosphino)ethane. This reaction will need reagent trimethylamine. And the yield is about 30%.

You should be cautious while dealing with this chemical. It may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; Take off immediately all contaminated clothing; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).  

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: ClP(Cl)CCP(Cl)Cl
(2)InChI: InChI=1/C2H4Cl4P2/c3-7(4)1-2-8(5)6/h1-2H2
(3)InChIKey: SBWAJHLQMFBNIN-UHFFFAOYAN