The 1, 3-Diphenyltetramethyldisilazane, with the CAS registry number of 3449-26-1, is also known as 1, 3-Diphenyl-1, 1, 3, 3-tetramethyldisilazane and Tetramethyl-1, 3-diphenyldisilazane. It belongs to the product categories of Analytical Chemistry; GC Derivatizing Reagents; Pentafluorophenylsilylation, etc. (GC Derivatizing Reagents); Si (Classes of Silicon Compounds); Silazanes; Silylation (GC Derivatizing Reagents); Si-N Compounds. Its EINECS registry number is 222-372-5. This chemical's molecular formula is C₁₆H₂₃NSi₂ and molecular weight is 285.53. What's more, its IUPAC name is [[[Dimethyl(phenyl)silyl]amino]-dimethylsilyl]benzene. In addition, it must be stored in airtight containers filled with argon and placed in a dry place.

Physical properties about 1, 3-Diphenyltetramethyldisilazane are: (1)ACD/LogP: 5.83; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 2.73; (4)ACD/LogD (pH 7.4): 2.73; (5)ACD/BCF (pH 5.5): 12.53; (6)ACD/BCF (pH 7.4): 12.54; (7)ACD/KOC (pH 5.5): 27.96; (8)ACD/KOC (pH 7.4): 27.98; (9)#H bond acceptors: 1; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 3.24 Å²; (13)Index of Refraction: 1.53; (14)Molar Refractivity: 91.14 cm³; (15)Molar Volume: 294.8 cm³; (16)Polarizability: 36.13×10^-24 cm³; (17)Surface Tension: 29.3 dyne/cm; (18)Density: 0.96 g/cm³; (19)Flash Point: 144.6 °C; (20)Enthalpy of Vaporization: 57.27 kJ/mol; (21)Boiling Point: 330.2 °C at 760 mmHg; (22)Vapour Pressure: 0.000169 mmHg at 25 °C.

Preparation: this chemical is prepared by Chloro-dimethyl-phenyl-silane. The reaction needs reagent NH₃(g) and solvent Hexane. The reaction temperature is 40 °C. The yield is about 80 %.

Uses: through highly silanization reaction, it can be used for glass capillary column subtraction active function and regulating the gas chromatographic stationary phase.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. In addition, this chemical may cause inflammation to the skin or other mucous membranes. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: N([Si](c1ccccc1)(C)C)[Si](c2ccccc2)(C)C
(2) InChI: InChI=1/C16H23NSi2/c1-18(2,15-11-7-5-8-12-15)17-19(3,4)16-13-9-6-10-14-16/h5-14,17H,1-4H3
(3) InChIKey: HIMXYMYMHUAZLW-UHFFFAOYAQ