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Chemical structure of Octadecamethylcyclononasiloxane

GB60294

Octadecamethylcyclononasiloxane

Also known as 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane

Octadecamethylcyclononasiloxane (catalogue number GB60294) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 556-71-8. Molecular formula C18H54O9Si9, molecular weight 667.39. IUPAC name: 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane. Supplied as 1g at ₪1,794.72; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS556-71-8MW667.39FormulaC18H54O9Si9
CAS number
556-71-8
Molecular weight
667.39
Formula
C18H54O9Si9
InChIKey
ISXOGOLHEGHGQF-UHFFFAOYSA-N
Catalogue number
GB60294
Brand
GLPBIO
Computed properties PubChem CID 11172 · TPSA 83.1 Ų · H-bond donors 0 · H-bond acceptors 9
TPSA
83.1 Ų
H-bond donors
0
H-bond acceptors
9
Rotatable bonds
0
Heavy atoms
36

SMILES C[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)C

Computed descriptors from PubChem (CID 11172), 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.