1,1,3,3,5,5,7,7-octamethyltetrasiloxane

Modify Date: 2024-01-02 17:35:35

1,1,3,3,5,5,7,7-octamethyltetrasiloxane Structure
1,1,3,3,5,5,7,7-octamethyltetrasiloxane structure
Common Name 1,1,3,3,5,5,7,7-octamethyltetrasiloxane
CAS Number 1000-05-1 Molecular Weight 282.632
Density 0.863 Boiling Point 205.1±23.0 °C at 760 mmHg
Molecular Formula C8H26O3Si4 Melting Point <0ºC
MSDS N/A Flash Point 77.8±22.6 °C

 Names

Name [[(dimethyl-λ3-silanyl)oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilicon
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.863
Boiling Point 205.1±23.0 °C at 760 mmHg
Melting Point <0ºC
Molecular Formula C8H26O3Si4
Molecular Weight 282.632
Flash Point 77.8±22.6 °C
Exact Mass 282.095886
PSA 27.69000
LogP 7.69
Vapour Pressure 0.4±0.4 mmHg at 25°C
Index of Refraction 1.3875
Storage condition 2~8℃

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XF3902000
CHEMICAL NAME :
Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl-
CAS REGISTRY NUMBER :
1000-05-1
LAST UPDATED :
199701
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C8-H26-O2-Si4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
9 gm/m3/6H/4W-I
TOXIC EFFECTS :
Liver - other changes Liver - changes in liver weight
REFERENCE :
TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 15,182,1995

 Safety Information

Hazard Codes Xi
Risk Phrases 36/37/38
Safety Phrases 26-36
RTECS XF3902000
HS Code 2934999090

 Synthetic Route

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

Octamethyltetrasiloxane
EINECS 213-669-0
1,1,3,3,5,5,7,7-Octamethyl-tetrasiloxan
1,1,3,3,5,5,7,7-octamethyltetrasiloxane
dihydro-1,1,3,3,5,5,7,7-octamethyltetrasiloxane
Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl-
Tetrasiloxane,1,1,3,3,5,5,7,7-octamethyl
MFCD00039789
1,1,3,3,5,5,7,7-Octamethyl Tetrasiloxane
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