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CAS 203642-77-7 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne molecular structure lightbox
CAS RN: 203642-77-7

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne

Product Availability

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5 package records4 with current stock1 grade group
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260212 100mg In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20250414 100mg / 250mg / 1g / 5g Out of stock 8-10 business days Inquiry
Batchno.20260219 1g In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20251126 250mg In stock Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20251104 5g In stock Shenzhen, Tianjin Inquiry
  • Product code: SSC-095869
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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: 0.25g, 1g, 5g
  • Available purity: >97%
  • Inventory rows with stock: 3
  • 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 203642-77-7
Pack Size Recorded Purity Available Qty Ship From Inquiry
0.25g >97% 1 In Stock Shenzhen Inquiry
1g >97% 1 In Stock Beijing Inquiry
5g >97% 1 In Stock Hong Kong Inquiry

203642-77-7 / tert-butyl-dimethyl-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]silane

Standard CAS: 203642-77-7 Multi CAS: No
Basic Information Computed Properties Safety & Transport

Basic Information

CAS
203642-77-7
Multi CAS
No
Molecular Formula
C17H34O5Si
Molecular Weight
346.500000
Exact Mass
346.217551
SMILES
CC(C)(C)[Si](C)(C)OCCOCCOCCOCCOCC#C
InChI
InChI=1S/C17H34O5Si/c1-7-8-18-9-10-19-11-12-20-13-14-21-15-16-22-23(5,6)17(2,3)4/h1H,8-16H2,2-6H3
InChIKey
NVHJBVPAABUHIU-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count
23
Fraction Csp3
0.88
Rotatable bonds
14
H-bond acceptors
5
Molar refractivity
95.26
TPSA
46.15

LogP / Solubility

WLOGP
2.71
MLOGP
2.4
XLogP3
2.71
Consensus LogP
2.61
Log S (ESOL)
-2.77
Class (ESOL)
Moderately soluble
Log S (Ali)
-4.36
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-5.84
Class (SILICOS-IT)
Slightly soluble

ADME

GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
Yes
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-2.91

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
Yes
Veber
No
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
2.5

Safety & Transport

Pictogram(s)
Acute Toxic
Signal
Danger
GHS Hazard Statements
H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral] H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
Precautionary Statement Codes
P264, P270, P280, P301+P316, P302+P352, P321, P330, P332+P317, P362+P364, P405, and P501

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