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18297-63-7

Name 1,3-Bis(trimethylsilyl)urea
CAS 18297-63-7
EINECS(EC#) 242-177-9
Molecular Formula C7H20N2OSi2
MDL Number MFCD00008260
Molecular Weight 204.42
MOL File 18297-63-7.mol
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Chemical Properties

Appearance White solid with mild odor
Melting point  219-221 °C(lit.)
Boiling point  222°C
density  0.887
vapor pressure  0.002-1850Pa at 25℃
Fp  65°C
storage temp.  Inert atmosphere,Room Temperature
solubility  pyridine: soluble100mg/mL, clear to slightly hazy, colorless to light yellow
form  solid
pka 16.51±0.46(Predicted)
Water Solubility  Reacts with water.
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
Sensitive  Moisture Sensitive
BRN  1937452
InChIKey MASDFXZJIDNRTR-UHFFFAOYSA-N
CAS DataBase Reference 18297-63-7(CAS DataBase Reference)
NIST Chemistry Reference Urea, n,n'-bis(trimethylsilyl)-(18297-63-7)
EPA Substance Registry System 18297-63-7(EPA Substance)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S14:Keep away from ... (incompatible materials to be indicated by the manufacturer) .
S16:Keep away from sources of ignition-No smoking .
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
F  3-10-21
TSCA  Yes
HS Code  29310095

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