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Chemical structure of Octaphenylcyclotetrasiloxane

GB53778

Octaphenylcyclotetrasiloxane

Also listed as 2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Octaphenylcyclotetrasiloxane (catalogue number GB53778) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 546-56-5. Molecular formula C48H40O4Si4, molecular weight 793.17. IUPAC name: 2,2,4,4,6,6,8,8-octakis-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane. Supplied in 2 pack sizes, from 100g at ₪155.00 to 500g at ₪697.49; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS546-56-5MW793.17FormulaC48H40O4Si4
CAS number
546-56-5
Molecular weight
793.17
Formula
C48H40O4Si4
InChIKey
VSIKJPJINIDELZ-UHFFFAOYSA-N
Catalogue number
GB53778
Brand
GLPBIO
Computed properties PubChem CID 68347 · TPSA 36.9 Ų · H-bond donors 0 · H-bond acceptors 4
TPSA
36.9 Ų
H-bond donors
0
H-bond acceptors
4
Rotatable bonds
8
Heavy atoms
56

SMILES C1=CC=C(C=C1)[Si]2(O[Si](O[Si](O[Si](O2)(C3=CC=CC=C3)C4=CC=CC=C4)(C5=CC=CC=C5)C6=CC=CC=C6)(C7=CC=CC=C7)C8=CC=CC=C8)C9=CC=CC=C9

Computed descriptors from PubChem (CID 68347), 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.