Octadecamethyloctasiloxane - CAS 556-69-4

Catalog:	BB054183
Product Name:	Octadecamethyloctasiloxane
CAS:	556-69-4
Synonyms:	Octasiloxane, octadecamethyl-; Octasiloxane, 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15,15-octadecamethyl-; 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15,15-Octadecamethylpentadecaneoctasiloxane; Octadecamethylpentadecaneoctasiloxane

Technical Data

IUPAC Name:	[dimethyl(trimethylsilyloxy)silyl]oxy-[[[[dimethyl(trimethylsilyloxy)silyl]oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilane
Molecular Weight:	607.30
Molecular Formula:	C18H54O7Si8
Canonical SMILES:	C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
InChI:	InChI=1S/C18H54O7Si8/c1-26(2,3)19-28(7,8)21-30(11,12)23-32(15,16)25-33(17,18)24-31(13,14)22-29(9,10)20-27(4,5)6/h1-18H3
InChI Key:	VWGDPBQTSZDFMX-UHFFFAOYSA-N
Boiling Point:	409.1±28.0°C at 760 mmHg
Melting Point:	-63°C
Purity:	95% by GC
Density:	0.913±0.1 g/cm3
Solubility:	Soluble in Benzene (Very), Ligroin (Very), Petroleum ether (Very), Water
Appearance:	Colorless Liquid
Storage:	Store at RT
Vapor Pressure:	6.98X10-5 mm Hg at 25 °C (extrapolated)

Complexity:	587
Compound Is Canonicalized:	Yes
Covalently-Bonded Unit Count:	1
Defined Atom Stereocenter Count:	0
Defined Bond Stereocenter Count:	0
Exact Mass:	606.20236633
Formal Charge:	0
Heavy Atom Count:	33
Hydrogen Bond Acceptor Count:	7
Hydrogen Bond Donor Count:	0
Isotope Atom Count:	0
Monoisotopic Mass:	606.20236633
Rotatable Bond Count:	14
Topological Polar Surface Area:	64.6
Undefined Atom Stereocenter Count:	0
Undefined Bond Stereocenter Count:	0