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CAS 77-63-4 2,4,6,8-tetramethyl-2,4,6,8-tetraphenylcyclotetrasiloxane molecular structure lightbox
CAS RN: 77-63-4

2,4,6,8-tetramethyl-2,4,6,8-tetraphenylcyclotetrasiloxane

Product Availability

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1 package records1 with current stock1 grade group
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250825 1g / 5g / 25g / 100g / 500g Confirm by inquiry Shanghai, Shandong, Chongqing 1 business days Inquiry
  • Product code: SSC-186473
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Historical Factory Record

Historical Supply Reference

This product has historical factory records. Recorded pack sizes and purity can be used as a supply reference, while project-specific availability is confirmed by inquiry.

  • Pack sizes on record: 100g
  • Available purity: ＞97%
  • Inventory rows with stock: 0
  • Bulk packaging: confirmed by inquiry
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Reference Pack Sizes

Reference pack sizes are shown below. Final availability, packaging and delivery schedule are confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 77-63-4
Pack Size Recorded Purity Available Qty Ship From Inquiry
100g ＞97% 0 Out of Stock Shanghai Inquiry

77-63-4 / 2,4,6,8-tetramethyl-2,4,6,8-tetraphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Standard CAS: 77-63-4 Multi CAS: No
Basic Information Computed Properties

Basic Information

CAS
77-63-4
Multi CAS
No
Molecular Formula
C28H32O4Si4
Molecular Weight
544.900000
Exact Mass
544.137766
InChI
InChI=1S/C28H32O4Si4/c1-33(25-17-9-5-10-18-25)29-34(2,26-19-11-6-12-20-26)31-36(4,28-23-15-8-16-24-28)32-35(3,30-33)27-21-13-7-14-22-27/h5-24H,1-4H3
InChIKey
IRVZFACCNZRHSJ-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count
36
Aromatic heavy atom count
24
Fraction Csp3
0.14
Rotatable bonds
4
H-bond acceptors
4
Molar refractivity
155.12
TPSA
36.92

LogP / Solubility

WLOGP
3.98
MLOGP
3.55
XLogP3
3.98
Consensus LogP
3.84
Log S (ESOL)
-5.96
Class (ESOL)
Slightly soluble
Log S (Ali)
-6.9
Class (Ali)
Insoluble
Log S (SILICOS-IT)
-6.99
Class (SILICOS-IT)
Insoluble

ADME

GI absorption
High
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
Yes
CYP2D6 inhibitor
No
CYP3A4 inhibitor
Yes
Log Kp (skin permeation)
-3.22

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
5

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