Home >  Chemical Encyclopedia > Miscellaneous > Chemical Reagents > Organosilicon Compounds > 2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ<sup>3</sup>,4λ<sup>3</sup>,6λ<sup>3</sup>,8λ<sup>3</sup>,10λ<sup>3</sup>-pentaoxapentasilecane

2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ<sup>3</sup>,4λ<sup>3</sup>,6λ<sup>3</sup>,8λ<sup>3</sup>,10λ<sup>3</sup>-pentaoxapentasilecane

CAS No.:

6166-86-5

Formula:

C5H20O5Si5

Molecular Weight: 300.63700
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Basic Info

Chemical Name

2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ<sup>3</sup>,4λ<sup>3</sup>,6λ<sup>3</sup>,8λ<sup>3</sup>,10λ<sup>3</sup>-pentaoxapentasilecane

Synonyms

2,4,6,8,10-Pentamethyl-cyclopentasiloxan; 2,4,6,8,10-Pentamethylcyclopentasiloxane; pentamethyl cyclopentasiloxane; 1,3,5,7,9-pentamethylhydrocyclopentasiloxane; cyclopentasiloxane; 1,3,5,7,9-pentamethylcyclopentasiloxane; Cyclopentasiloxane,2,4,6,8,10-pentamethyl; EINECS 228-204-7; Cyclopentasiloxane, 2,4,6,8,10-pentamethyl-; Expand

CAS No.

6166-86-5

Molecular Formula

C5H20O5Si5

Molecular Weight

300.63700

PSA

46.15000

LogP

-0.66550

Numbering system

EINECS number 228-204-7

Properties

Density

0.992 g/mL at 25ºC(lit.)

Boiling Point

54ºC10 mm Hg(lit.)

Melting Point

-108ºC

Flash Point

39ºC

Refractive Index

n20/D 1.392(lit.)

Safety Info

Safety Statements

S16; S26; S36

HS Code

2901100000

RIDADR

UN 1993 3/PG 3

Risk Statements

R10; R36/37/38

Hazard Codes

Xi

Hazard Declaration

H226

Signal Word

Warning

Symbol

GHS02
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