Molecular Structure of Heptamethyldisilazane (37074-17-2):

Systematic Name: N,N-Bis(trimethylsilyl)methanamine 
Molecular Formula: C₇H₂₁NSi₂
Molecular Weight: 175.4193
SMILES: N(C)([Si](C)(C)C)[Si](C)(C)C
InChI: InChI=1/C7H21NSi2/c1-8(9(2,3)4)10(5,6)7/h1-7H3
InChIKey: ZSMNRKGGHXLZEC-UHFFFAOYAU
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 2
Index of Refraction: 1.413
Molar Refractivity: 55.63 cm³
Molar Volume: 222.8 cm³
Surface Tension: 17.3 dyne/cm
Density: 0.787 g/cm³
Flash Point: 43.9 °C
Boiling Point: 149 °C at 760 mmHg
Enthalpy of Vaporization: 38.59 kJ/mol
Vapour Pressure: 4.11 mmHg at 25 °C
Water Solubility: 222.5 mg/L at 25 °C

Safety Information of Heptamethyldisilazane (37074-17-2):
RIDADR: 2924
HazardClass: 3.2
PackingGroup: III

  Heptamethyldisilazane (37074-17-2) is colorless clear liquid, insoluble in water, soluble in organic solvents. It becomes form of  salts in acids. Heptamethyldisilazane (37074-17-2) is also known as N,N-Bis(trimethylsilyl)methylamine ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamin ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamine ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silylamine ; Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)- . It is used as group protecting agent widely used in pesticides, veterinary.