HEPTAMETHYL CYCLOTETRASILOXANE
Suppliers
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
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%