The Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, with the CAS registry number 162881-26-7, is also known as Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide. It belongs to the product categories of Miscellaneous; Organic Photoinitiators; Polymerization Initiators. Its EINECS number is 423-340-5. This chemical's molecular formula is C₂₆H₂₇O₃P and molecular weight is 418.46. What's more, its systematic name is (Phenylphosphoryl)bis(mesitylmethanone). Its classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance]. This chemical is stable at common pressure and temperature, and it should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides, acids and light.

Physical properties of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide are: (1)ACD/LogP: 5.344; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.34; (4)ACD/LogD (pH 7.4): 5.34; (5)ACD/BCF (pH 5.5): 6779.82; (6)ACD/BCF (pH 7.4): 6779.82; (7)ACD/KOC (pH 5.5): 19229.90; (8)ACD/KOC (pH 7.4): 19229.90; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 61.02 Å²; (13)Index of Refraction: 1.589; (14)Molar Refractivity: 120.145 cm³; (15)Molar Volume: 356.703 cm³; (16)Polarizability: 47.629×10^-24cm³; (17)Surface Tension: 48.8 dyne/cm; (18)Density: 1.173 g/cm³; (19)Flash Point: 310.602 °C; (20)Enthalpy of Vaporization: 88.034 kJ/mol; (21)Boiling Point: 589.968 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause long-term adverse effects in the aquatic environment and may cause sensitisation by skin contact. You should not breathe dust. When using it, you must avoid contact with skin and you need to wear suitable gloves. You should avoid releasing it to the environment, and you need to refer to special instructions/safety data sheet.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(c1c(cc(cc1C)C)C)P(=O)(C(=O)c2c(cc(cc2C)C)C)c3ccccc3
(2)Std. InChI: InChI=1S/C26H27O3P/c1-16-12-18(3)23(19(4)13-16)25(27)30(29,22-10-8-7-9-11-22)26(28)24-20(5)14-17(2)15-21(24)6/h7-15H,1-6H3
(3)Std. InChIKey: GUCYFKSBFREPBC-UHFFFAOYSA-N