Description

(Heptafluoropropyl)trimethylsilane (CAS No. 3834-42-2) is a high-purity fluorinated organosilicon compound with the molecular formula C₆H₉F₇Si. This specialty chemical is widely used in advanced material synthesis, surface modification, and as a key intermediate in pharmaceutical and agrochemical applications. Its unique structure, featuring a heptafluoropropyl group bonded to a trimethylsilane moiety, imparts exceptional thermal stability, chemical resistance, and hydrophobic properties. Available in rigorously controlled batches, this compound is ideal for researchers requiring precise fluorinated silane reagents for coatings, adhesives, or nanotechnology applications. Packaged under inert gas to ensure stability and supplied with comprehensive analytical documentation (including GC, NMR, and MS data).

Properties

• CAS Number: 3834-42-2
• Complexity: 211
• IUPAC Name: 1,1,2,2,3,3,3-heptafluoropropyl(trimethyl)silane
• InChI: InChI=1S/C6H9F7Si/c1-14(2,3)6(12,13)4(7,8)5(9,10)11/h1-3H3
• InChI Key: PKLASFRWKXWKII-UHFFFAOYSA-N
• Exact Mass: 242.03617396
• Molecular Formula: C6H9F7Si
• Molecular Weight: 242.21
• SMILES: C[Si](C)(C)C(C(C(F)(F)F)(F)F)(F)F
• Monoisotopic Mass: 242.03617396
• Synonyms: (Heptafluoropropyl)trimethylsilane, 3834-42-2, DTXSID70400078, DTXCID80350934, 624-436-1, Trimethyl(heptafluoropropyl)silane, 1,1,2,2,3,3,3-heptafluoropropyl(trimethyl)silane, 1-(Trimethylsilyl)heptafluoropropane, Silane,(1,1,2,2,3,3,3-heptafluoropropyl)trimethyl-, MFCD00216712, C6H9F7Si, SCHEMBL104119, Trimethyl(perfluoropropyl)silane, (1,1,2,2,3,3,3-HEPTAFLUOROPROPYL)TRIMETHYLSILANE, PKLASFRWKXWKII-UHFFFAOYSA-N, AKOS015915752, (Heptafluoropropyl)trimethylsilane, 97%, BS-44162, (E)-2-Butenyltriphenyl-phosphonium Bromide, NS00111235, T3593, T72406

Application

(Heptafluoropropyl)trimethylsilane is primarily used as a surface modifier to impart water and oil repellency to glass, ceramics, and polymers. It serves as a key intermediate in the synthesis of fluorinated silicones for high-performance lubricants and coatings. Additionally, this compound finds utility in semiconductor manufacturing as a low-surface-energy material for anti-stiction layers.

Safety and Hazards

GHS Hazard Statements

• H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (100%)

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