CAS No 556-67-2 , 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Search by region : Germany

Name: 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
Synonyms: Cyclic dimethylsiloxane tetramer; octamethyl-; 556-67-2; OMCTS; Oktamethylcyklotetrasiloxan;2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane;Cyclotetrasiloxane; Union carbide 7207;
CAS Registry Number:556-67-2
Transport: UN 1993
Melting Point: 17-18 ºC
Flash Point: 56 ºC
Boiling Point: 175-176 ºC
Density: 0.956
Refractive index: 1.395-1.397
Safety Statements: R53;R62
Hazard Symbols: Xn: Harmful;
Flash Point: 56 ºC
EINECS: 209-136-7
Molecular Weight: 296.61576
InchiKey: HMMGMWAXVFQUOA-UHFFFAOYSA-N
InChI: InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
Risk Statements: S36/37;S46;S51;S61
Molecular Formula: C₈H₂₄O₄Si₄
Molecular Structure:

Related products

Select to

556-67-2 OCTAMETHYLCYCLOTETRASILOXANE; 97%

ABCR GmbH & Co KG [Manufacturer]
Tel: +49 721 95061-0
Fax: +49 721 95061-80
Address: Im Schlehert 10
76187 Karlsruhe
Germany null,nullGermany

556-67-2 OCTAMETHYLCYCLOTETRASILOXANE

CHEMOS GmbH [Manufacturer]
Tel: 0049 9402/9336 0
Fax: 0049 9402/9336 13
Address: CHEMOS GmbH
Werner-von-Siemensstr. 3
93128 Regenstauf
Germany null,nullGermany

Select to

1/1

References of 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Title: Octamethylcyclotetrasiloxane
CAS Registry Number: 556-67-2
Molecular Formula: C8H24O4Si4
Molecular Weight: 296.62
Percent Composition: C 32.39%, H 8.16%, O 21.58%, Si 37.87%
Literature References: Isolated from the hydrolysis product of dimethyldichlorosilane: Patnode, Wilcock, J. Am. Chem. Soc. 68, 358 (1946).
Properties: Oily liquid. mp 17.5°. bp 175°. bp20 74°. d 0.9558. nD20 1.3968.
Melting point: mp 17.5°
Boiling point: bp 175°; bp20 74°
Index of refraction: nD20 1.3968
Density: d 0.9558
Use: Preparation of methyl silicon oils.