1,1,3,3,5,5-Hexamethyl Cyclotrisilazane

Modify Date: 2025-08-25 15:48:24

1,1,3,3,5,5-Hexamethyl Cyclotrisilazane Structure
1,1,3,3,5,5-Hexamethyl Cyclotrisilazane structure
 Common Name 1,1,3,3,5,5-Hexamethyl Cyclotrisilazane
CAS Number 1009-93-4 Molecular Weight 219.508
Density 0.9±0.1 g/cm3 Boiling Point 188.0±0.0 °C at 760 mmHg
Molecular Formula C6H21N3Si3 Melting Point −10 °C(lit.)
MSDS N/A Flash Point 63.5±18.7 °C

 Names

Name 2,2,4,4,6,6-Hexamethylcyclotrisilazane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 188.0±0.0 °C at 760 mmHg
Melting Point −10 °C(lit.)
Molecular Formula C6H21N3Si3
Molecular Weight 219.508
Flash Point 63.5±18.7 °C
Exact Mass 219.104324
PSA 36.09000
LogP 1.86060
Vapour Pressure 0.6±0.3 mmHg at 25°C
Index of Refraction 1.454

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GZ4720000
CHEMICAL NAME :
Cyclotrisilazane, 2,2,4,4,6,6-hexamethyl-
CAS REGISTRY NUMBER :
1009-93-4
BEILSTEIN REFERENCE NO. :
0774739
LAST UPDATED :
199701
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C6-H21-N3-Si3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
1330 mg/kg
TOXIC EFFECTS :
Behavioral - muscle weakness Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 27(11),50,1983 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
5950 mg/kg/17W-I
TOXIC EFFECTS :
Related to Chronic Data - death
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 27(11),50,1983

 Safety Information

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S36
RIDADR 1993
WGK Germany 3
RTECS GZ4720000
Packaging Group III
Hazard Class 3.2
HS Code 2901100000

 Synthetic Route

Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

~%

1,1,3,3,5,5-Hexamethyl Cyclotrisilazane Structure

1,1,3,3,5,5-Hex...

CAS#:1009-93-4

octamethylcyclotetrasilazane structure

octamethylcyclo...

CAS#:1020-84-4

Literature: Inorg.Synth., , vol. 5, p. 62 US2462635 , ; Journal of the American Chemical Society, , vol. 70, p. 3888,3889
Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

1,3-Bis(chlorodimethylsilyl)-2,2,4,4-tetramethyl-1,3-diaza-2,4-disilacyclobutane structure

1,3-Bis(chlorod...

CAS#:2329-10-4

~13%

N/A structure

N/A

CAS#:13270-82-1

1,3-bis[3-(aminodimethylsilyl)-2,2,4,4-tetramethyl-1-cyclodisilazanyl]-1,1,3,3-tetramethyldisilazane structure

1,3-bis[3-(amin...

CAS#:75344-63-7

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 52, # 8 p. 1843 - 1846,1633 - 1635
Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

1,3-Bis(chlorodimethylsilyl)-2,2,4,4-tetramethyl-1,3-diaza-2,4-disilacyclobutane structure

1,3-Bis(chlorod...

CAS#:2329-10-4

~13%

N/A structure

N/A

CAS#:13270-82-1

1,3-bis[3-(aminodimethylsilyl)-2,2,4,4-tetramethyl-1-cyclodisilazanyl]-1,1,3,3-tetramethyldisilazane structure

1,3-bis[3-(amin...

CAS#:75344-63-7

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 52, # 8 p. 1843 - 1846,1633 - 1635
2,2-dichlorotetramethylcyclotrisiloxane structure

2,2-dichlorotet...

CAS#:51840-40-5

Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

~14%

N/A structure

N/A

CAS#:131967-49-2

2,2,4,4,10,10,12,12,15,15-decamethylspiro[1.5.3.5]heptasila-7,14,16,-triaza-1,3,5,9,11,13-hexaoxane structure

2,2,4,4,10,10,1...

CAS#:131967-52-7

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 60, # 9.2 p. 2107 - 2116,1879 - 1887
Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

1,3-Bis(chlorodimethylsilyl)-2,2,4,4-tetramethyl-1,3-diaza-2,4-disilacyclobutane structure

1,3-Bis(chlorod...

CAS#:2329-10-4

~13%

N/A structure

N/A

CAS#:13270-82-1

1,3-bis[3-(aminodimethylsilyl)-2,2,4,4-tetramethyl-1-cyclodisilazanyl]-1,1,3,3-tetramethyldisilazane structure

1,3-bis[3-(amin...

CAS#:75344-63-7

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 52, # 8 p. 1843 - 1846,1633 - 1635
Ammonia structure

Ammonia

CAS#:7664-41-7

Dichlorodimethylsilane structure

Dichlorodimethy...

CAS#:75-78-5

benzene structure

benzene

CAS#:71-43-2

~%

1,1,3,3,5,5-Hexamethyl Cyclotrisilazane Structure

1,1,3,3,5,5-Hex...

CAS#:1009-93-4

Detail
Literature: Journal of the American Chemical Society, , vol. 70, p. 3888,3889

 Customs

HS Code 2901100000
Summary 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

 Synonyms

EINECS 213-773-6
2,2,4,4,6,6-HexaMethylcyclotrisilazane
Dimethylsilazane Cyclic Trimer
MFCD00039698
2,2,4,4,6,6-Hexamethyl-1,3,5,2,4,6-triazatrisilinane
Cyclotrisilazane, 2,2,4,4,6,6-hexamethyl-
1,1,3,3,5,5-Hexamethyl Cyclotrisilazane
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