Description

Trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane (CAS No. 85857-16-5) is a highly specialized fluorinated organosilane compound with the molecular formula C₁₁H₁₃F₁₃O₃Si. This advanced silane coupling agent features a tridecafluorooctyl chain, offering exceptional hydrophobicity, oleophobicity, and chemical resistance. The trimethoxy silane group enables efficient surface modification and covalent bonding to hydroxyl-rich substrates such as glass, metals, and ceramics. Ideal for research and industrial applications requiring durable low-surface-energy coatings, this compound is rigorously purified to meet the demands of material science, nanotechnology, and specialty coatings. Available in high-purity grades, it is packaged under inert conditions to ensure stability and performance consistency.

Properties

• CAS Number: 85857-16-5
• Complexity: 522
• IUPAC Name: trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane
• InChI: InChI=1S/C11H13F13O3Si/c1-25-28(26-2,27-3)5-4-6(12,13)7(14,15)8(16,17)9(18,19)10(20,21)11(22,23)24/h4-5H2,1-3H3
• InChI Key: BVQYIDJXNYHKRK-UHFFFAOYSA-N
• Exact Mass: 468.0426369
• Molecular Formula: C11H13F13O3Si
• Molecular Weight: 468.28
• SMILES: CO[Si](CCC(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(OC)OC
• Topological: 27.7
• Monoisotopic Mass: 468.0426369
• Synonyms: Trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane, EINECS 288-657-1, Silane, trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)-, 288-657-1, 85857-16-5, 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane, Trimethoxy(1H,1H,2H,2H-tridecafluoro-n-octyl)silane, [2-(Perfluorohexyl)ethyl]trimethoxysilane, (1h,1h,2h,2h-perfluorooctyl)trimethoxysilane, C11H13F13O3Si, MFCD00153261, (tridecafluoro-1,1,2,2-tetrahydrooctyl)trimethoxysilane, SCHEMBL64375, Trimethoxytridecafluoroctylsilane, DTXSID80235136, BCP19437, MSK160008, AKOS005762885, DS-4280, Trimethoxy((perfluorohexyl)ethyl)silane, 1H,1H,2H,2H-Perfluoroctyltrimethoxysilane, 1h,1h,2h,2h-perfluorooctyl trimethoxysilane, CS-0111136, NS00065176, T3560, D83495, 1H,1H,2H,2H-Perfluoroctyltrimethoxysilane, 97%, A841463, Trimethoxy(1H,1H,2H,2H-perfluoro-n-octyl)silane, Trimethoxy(1H,1H,2H,2H-Tridecafluoro-N-Ctyl)Silane, (Tridecafluoro-1,1,2,2-Tetrahydroctyl)Trimethoxysilane, Trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoroctyl)silane, trimethoxy-[3,3,4,4,5,5,6,6,7,7,8,8,8-tridecakis(fluoranyl)octyl]silane

Application

Trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane is widely used as a surface modifier to impart water- and oil-repellent properties to materials. It is particularly valuable in the fabrication of superhydrophobic coatings for textiles, electronics, and medical devices. The compound also serves as a key intermediate in the synthesis of fluorinated siloxane polymers for high-performance sealants and adhesives. Its ability to bond to inorganic surfaces makes it suitable for creating anti-fouling and anti-corrosion coatings in harsh environments.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (75%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (75%)

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