1,4-Xylenebis(diethylphosphonate)
[CAS# 4546-04-7]

Identification

• Classification: Chemical reagent >> Organic reagent >> Phosphine ligand
• Name: 1,4-Xylenebis(diethylphosphonate)
• Synonyms: NSC 203064; Tetraethyl 1,4-phenylenebis(methylene)diphosphonate; Tetraethyl [1,4-phenylenebis(methylene)]bisphosphonate; Tetraethyl p-xylylenebis(phosphonate); Tetraethyl p-xylylenediphosphonate; Tetraethyl alpha,alpha'-p-xylenediphosphonate; p-Bis(diethylphosphono)xylene; p-Xylenebis(diethyl phosphonate); p-Xylylenebis(diethyl phosphonate)
• Molecular Formula: C₁₆H₂₈O₆P₂
• Molecular Weight: 378.34
• CAS Registry Number: 4546-04-7
• EC Number: 224-902-0

Properties

• Solubility: Slightly soluble (3.8 g/L) (25 ºC), Calc.^*
• Density: 1.153±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 142-143 ºC (chloroform )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Kuo, Chao-Hui; Chemistry of Materials 2006, V18(17), P4121-4129.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319