HEPTAMETHYL CYCLOTETRASILOXANE

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Names

[ CAS No. ]:
15721-05-8

[ Name ]:
HEPTAMETHYL CYCLOTETRASILOXANE

[Synonym ]:
Heptamethylcyclotetrasiloxane
2,4,4,6,6,8,8-Heptamethylcyclotetrasiloxan
1,3,3,5,5,7,7-Heptamethylcyclotetrasiloxan
2,2,4,4,6,6,8-Heptamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
Cyclotetrasiloxane, 2,2,4,4,6,6,8-heptamethyl-
CYCLOTETRASILOXANE,HEPTAMETHYL
1,3,3,5,5,7,7-heptamethylcyclotetrasiloxane
2,2,4,4,6,6,8-heptamethyl-1,3,5,7,2,4,6,8
Heptamethyl-cyclotetrasiloxan

Chemical & Physical Properties

[ Density]:
0.958 g/cm3

[ Boiling Point ]:
174.3±23.0 °C at 760 mmHg

[ Melting Point ]:
-27ºC

[ Molecular Formula ]:
C7H22O4Si4

[ Molecular Weight ]:
282.589

[ Flash Point ]:
59.2±22.6 °C

[ Exact Mass ]:
282.059509

[ PSA ]:
36.92000

[ LogP ]:
2.02210

[ Vapour Pressure ]:
1.6±0.3 mmHg at 25°C

[ Index of Refraction ]:
1.3965

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GZ4391000
CHEMICAL NAME :
Cyclotetrasiloxane, heptamethyl-
CAS REGISTRY NUMBER :
15721-05-8
BEILSTEIN REFERENCE NO. :
1786647
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C7-H22-O4-Si4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
3 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1228,1986

Safety Information

[ Risk Phrases ]:
10

[ Safety Phrases ]:
16

[ RIDADR ]:
UN 1993

[ HS Code ]:
2901100000

Synthetic Route

Click to get detail synthetic route

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%

Related Compounds

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  • 2-(3-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)-N-(3,4-dimethoxyphenethyl)acetamide oxalate
  • 2-(3-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)-N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)acetamide oxalate
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