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| Name |
Octamethylcyclotetrasilazane |
EINECS | 213-817-4 |
| CAS No. | 1020-84-4 | Density | 0.926 g/cm3 |
| PSA | 48.12000 | LogP | 2.48080 |
| Solubility | N/A | Melting Point |
96-99 °C(lit.) |
| Formula | C8H28N4Si4 | Boiling Point | 240.397 °C at 760 mmHg |
| Molecular Weight | 292.679 | Flash Point | 99.189 °C |
| Transport Information | UN 2811 6.1/PG 3 | Appearance | white crystals |
| Safety | 45 | Risk Codes | 25 |
| Molecular Structure |
|
Hazard Symbols |
 T
|
| Synonyms |
1,1,3,3,5,5,7,7-Octamethylcyclotetrasilazane;2,2,4,4,6,6,8,8-Octamethylcyclotetrasilazane; |
Octamethylcyclotetrasilazane Chemical Properties
Molecular Structure of Octamethylcyclotetrasilazane (CAS NO.1020-84-4):
.gif)
IUPAC Name: 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetrazatetrasilocane
Molecular Formula: C8H28N4Si4
Molecular Weight: 292.68
EINECS: 213-817-4
Melting Point: 96-99 °C(lit.)
Index of Refraction: 1.46
Molar Refractivity: 86.66 cm3
Molar Volume: 315.9 cm3
Surface Tension: 20.7 dyne/cm
Density: 0.92 g/cm3
Flash Point: 99.2 °C
Enthalpy of Vaporization: 47.73 kJ/mol
Boiling Point: 240.4 °C at 760 mmHg
Vapour Pressure: 0.038 mmHg at 25 °C
Sensitive: Moisture Sensitive
Appearance: white crystals
Canonical SMILES: C[Si]1(N[Si](N[Si](N[Si](N1)(C)C)(C)C)(C)C)C
InChI: InChI=1S/C8H28N4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h9-12H,1-8H3
InChIKey: FIADVASZMLCQIF-UHFFFAOYSA-N
Product Categories: Si (Classes of Silicon Compounds); Silazanes; Si-N Compounds
Octamethylcyclotetrasilazane Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | oral | 100mg/kg (100mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | "Spravochnik po Toksikologii i Gigienicheskim Normativam Vol. -, Pg. 205, 1999. |
Octamethylcyclotetrasilazane Safety Profile
Safety Information of Octamethylcyclotetrasilazane (CAS NO.1020-84-4):
Hazard Codes: 
T
Risk Statements: 25
R25 :Toxic if swallowed.
Safety Statements: 45
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: GZ4342500
TSCA: Yes
HazardClass: 8
PackingGroup: III
Octamethylcyclotetrasilazane Specification
Octamethylcyclotetrasilazane (CAS NO.1020-84-4), its Synonyms are 2,2,4,4,6,6,8,8-Octamethylcyclotetrasilazane ; Cyclotetrasilazane, 2,2,4,4,6,6,8,8-octamethyl- ; 1,1,3,3,5,5,7,7-Octamethylcyclotetrasilazane .
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