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CAS 556-69-4 octadecamethyloctasiloxane molecular structure lightbox
CAS RN: 556-69-4

octadecamethyloctasiloxane

  • Product code: SSC-163530
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Verified Factory Data

Supply Overview & Packaging Options

Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.

  • Pack sizes on record: 0.1g, 0.25g, 1g, 5g, 10g
  • Available purity: >95%
  • Inventory rows with stock: 5
  • Bulk packaging: confirmed by inquiry
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Available Pack Sizes & Stock

Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 556-69-4
Pack Size Recorded Purity Available Qty Ship From Inquiry
0.1g >95% 3 In Stock Shenzhen Inquiry
0.25g >95% 3 In Stock Shenzhen Inquiry
1g >95% 2 In Stock Shenzhen Inquiry
5g >95% 2 In Stock Shanghai Inquiry
10g >95% 2 In Stock Shanghai Inquiry

556-69-4 / [dimethyl(trimethylsilyloxy)silyl]oxy-[[[[dimethyl(trimethylsilyloxy)silyl]oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilane

Standard CAS: 556-69-4 Multi CAS: No
Basic Information Physical Properties Computed Properties

Basic Information

CAS
556-69-4
Multi CAS
No
Molecular Formula
C18H54O7Si8
Molecular Weight
607.300000
Exact Mass
606.202366
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
InChIKey
VWGDPBQTSZDFMX-UHFFFAOYSA-N

Physical Properties

Melting Point
-63 °C
Boiling Point
311.6 °C BP: 153 at 5.1 mm Hg
Density
0.913 g/cu cm at 20 °C

Computed Properties

Structural Parameters

Heavy atom count
33
Fraction Csp3
1
Rotatable bonds
14
H-bond acceptors
7
Molar refractivity
159.18
TPSA
64.61

LogP / Solubility

WLOGP
6.98
MLOGP
6.19
XLogP3
6.98
Consensus LogP
6.72
Log S (ESOL)
-7.08
Class (ESOL)
Insoluble
Log S (Ali)
-9.58
Class (Ali)
Insoluble
Log S (SILICOS-IT)
-11.08
Class (SILICOS-IT)
Insoluble

ADME

GI absorption
Low
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
Yes
CYP2D6 inhibitor
No
CYP3A4 inhibitor
Yes
Log Kp (skin permeation)
-1.47

Drug-likeness / Medicinal Chemistry

Lipinski
No
Ghose
No
Veber
No
Egan
No
Muegge
No
Bioavailability score
0.17
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
2.5

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