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Chemical structure of Octadecyltrimethoxysilane

GD21621

Octadecyltrimethoxysilane

Also known as trimethoxy(octadecyl)silane

Octadecyltrimethoxysilane (catalogue number GD21621) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 3069-42-9. Molecular formula C21H46O3Si, molecular weight 374.674. IUPAC name: trimethoxy(octadecyl)silane. Supplied in 3 pack sizes, from 25ml at ₪114.21 to 500ml at ₪1,341.96; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS3069-42-9MW374.674FormulaC21H46O3Si
CAS number
3069-42-9
Molecular weight
374.674
Formula
C21H46O3Si
InChIKey
SLYCYWCVSGPDFR-UHFFFAOYSA-N
Catalogue number
GD21621
Brand
GLPBIO
Computed properties PubChem CID 76486 · TPSA 27.7 Ų · H-bond donors 0 · H-bond acceptors 3
TPSA
27.7 Ų
H-bond donors
0
H-bond acceptors
3
Rotatable bonds
20
Heavy atoms
25

SMILES CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC

Computed descriptors from PubChem (CID 76486), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

Lead time
Ships from the manufacturer to your lab in 8–14 business days; customs and cold chain handled by LABO Scientific.
Pricing
Quoted in ILS, excl. VAT. Add the item to your quote and we confirm the final price, usually the same business day.
Documents
Lot certificate of analysis and manufacturer SDS are emailed with your order confirmation.
Who we serve
Universities, hospitals and biotech companies across Israel. Research use only — not for diagnostic or therapeutic use.