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556-67-2

556-67-2 Structure

556-67-2 Structure
IdentificationMore
【Name】

Octamethylcyclotetrasiloxane
【CAS】

556-67-2
【Synonyms】

D4
DIMETHYLSILOXANE CYCLIC TETRAMER
OCTAMETHYLCYCLOTETRASILOXANE
OCTAMETHYLTETRASILOXANE
VOLASIL(TM) 244
2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
CO9810
cyclicdimethylsiloxanetetramer
Cyclotetrasiloxane,octamethyl-
kf994
NUC Silicone VS 7207
nucsiliconevs7207
O9810
Octamethylcyclotetraoxysilane
octamethyl-cyclotetrasiloxan
octamethylcyclotetrasiloxane(volasil244)
Oktamethylcyklotetrasiloxan
sf1173
siliconesf1173
tetracyclosiloxane,octamethyl-
【EINECS(EC#)】

209-136-7
【Molecular Formula】

C8H24O4Si4
【MDL Number】

MFCD00003269
【Molecular Weight】

296.62
【MOL File】

556-67-2.mol
Chemical PropertiesBack Directory
【Appearance】

Colorless clear liquid
【mp 】

17-18 °C(lit.)
【bp 】

175-176 °C(lit.)
【density 】

0.956 g/mL at 25 °C(lit.)
【vapor density 】

1 (vs air)
【refractive index 】

n20/D 1.396(lit.)
【Fp 】

140 °F
【storage temp. 】

2-8°C
【Water Solubility 】

INSOLUBLE
【Sensitive 】

Moisture Sensitive
【Usage】

Fungicide
【Merck 】

14,6747
【BRN 】

1787074
【CAS DataBase Reference】

556-67-2(CAS DataBase Reference)
【NIST Chemistry Reference】

Cyclotetrasiloxane, octamethyl-(556-67-2)
【EPA Substance Registry System】

556-67-2(EPA Substance)
Safety DataBack Directory
【Hazard Codes 】

Xn
【Risk Statements 】

R53:May cause long-term adverse effects in the aquatic environment.
R62:Possible risk of impaired fertility.
【Safety Statements 】

S36/37:Wear suitable protective clothing and gloves .
S46:If swallowed, seek medical advice immediately and show this container or label .
S51:Use only in well-ventilated areas .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
【RIDADR 】

UN 1993 3/PG 3
【WGK Germany 】

1
【RTECS 】

GZ4397000
【TSCA 】

Yes
【HazardClass 】

3
【PackingGroup 】

III
【Hazardous Substances Data】

556-67-2(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
【Raw materials】

Dichlorodimethylsilane
【Preparation Products】

Poly(dimethylsiloxane)-->Dimethoxymethylphenylsilane-->silicone softener RS-->Amino-modified silicone oil-->Dimethicone-->Silicone rubber,methyl RTV 107-->Hydroxy silicone oil emulsion-->Poly(dimethylsiloxane)-->Organosilicon water-proofing agent-->SILANOL TERMINATED POLYDIMETHYLSILOXANE-->Silicone rubber,high temperature-vulcanized mixing-->Silicone oil polyether modified
Spectrum DetailBack Directory
【Spectrum Detail】

Octamethylcyclotetrasiloxane(556-67-2)IR2
Octamethylcyclotetrasiloxane(556-67-2)IR1
Octamethylcyclotetrasiloxane(556-67-2)1HNMR
Octamethylcyclotetrasiloxane(556-67-2)13CNMR
Octamethylcyclotetrasiloxane(556-67-2)MS
Well-known Reagent Company Product InformationBack Directory
【Acros Organics】

Octamethylcyclotetrasiloxane, 98%(556-67-2)
【Alfa Aesar】

Octamethylcyclotetrasiloxane, 98%(556-67-2)
【Sigma Aldrich】

556-67-2(sigmaaldrich)
【TCI AMERICA】

Octamethylcyclotetrasiloxane,>98.0%(GC)(556-67-2)
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