Basic

CAS No.	1054-59-7
Product Name	(diphenylphosphoryl-phenyl-phosphoryl)benzene
Synonyms	1,1,2,2-Tetraphenyldiphosphane 1,2-dioxide; NSC 77598
Molecular Formula	C24H20O2P2
Molecular Weight	402.3619

Physical property

Density	1.25g/cm3
Boiling point	554.9°C at 760 mmHg
Flash point	289.4°C
Refractive index	1.631