Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane

Inventory

EC number:
203-497-4
EC name:
Octamethyltrisiloxane
CAS number:
107-51-7
CAS number:
107-51-7
Synonyms
Names:
1,1,1,3,3,5,5,5-Octamethyltrisiloxane
Dimethyl-bis(trimethylsilyloxy)silane
Dimethylbis(trimethylsiloxy)silane
Octamethyltrisiloxane
Trisiloxane, octamethyl-
Trisiloxane, octamethyl- (6CI,8CI,9CI)
Identifier:
IUPAC name
2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane
Identifier:
IUPAC name
Octamethyltrisiloxane
Identifier:
other: SMILES notation
C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
Identifier:
other: InChl
InChI=1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3
octamethyltrisiloxane

Molecular and structural information

Molecular formula:
C8H24O2Si3
Molecular weight:
236
SMILES notation:
C[Si](O[Si](C)(C)C)(O[Si](C)(C)C)C
InChl:
InChI=1/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3
Structural formula:
Chemical structure

Related substances

Identifier:
common name
Identity:

1,1,1,3,3,5,5,5-Octamethyltrisiloxane
Dimethyl-bis(trimethylsilyloxy)silane
Dimethylbis(trimethylsiloxy)silane
Octamethyltrisiloxane
Trisiloxane, octamethyl-
Trisiloxane, octamethyl- (6CI,8CI,9CI)