Allyloxy-tert-butyldimethylsilane

CAS 105875-75-0H2C=CHCH2OSi(CH3)2C(CH3)3Chemical Synthesis

Allyloxy-tert-butyldimethylsilane (CAS: 105875-75-0) is an organosilicon compound with the linear formula H₂C=CHCH₂OSi(CH₃)₂C(CH₃)₃ and a molecular weight of 172.34 g/mol. This flammable liquid serves as a valuable building block in organic synthesis. Its structure, featuring an allyl group protected by a tert-butyldimethylsilyl ether, makes it useful for introducing protected hydroxyl functionalities or as a reactant in various organic transformations.

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Allyloxy-tert-butyldimethylsilane (H2C=CHCH2OSi(CH3)2C(CH3)3) — chemical structure, CAS 105875-75-0; Chemistry, fine chemical supplied by Tech Serve Solutions

AcyclicAlkenesBuilding BlocksChemical SynthesisOrganic Building Blocks

01 /Applications

Organic Synthesis Intermediate

Utilised as a key intermediate in multi-step organic synthesis pathways. Its protected hydroxyl group allows for selective reactions elsewhere in a molecule before deprotection.

Protecting Group Chemistry

The tert-butyldimethylsilyl (TBS) ether moiety functions as a robust protecting group for alcohols. It is stable under various reaction conditions but can be selectively removed when required.

Building Block for Complex Molecules

Serves as a versatile building block in the synthesis of complex organic molecules, including pharmaceuticals and fine chemicals. The presence of the alkene functionality also allows for further derivatisation.

02 /Properties

Molecular weight	172.34
Linear formula	H2C=CHCH2OSi(CH3)2C(CH3)3
Assay	98%
Boiling point	120 °C/50 mmHg(lit.)
Density	0.811 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.421(lit.)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Warning

Hazard statements

H226Flammable liquid and vapour

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	33 °C / 91.4 °F
Transport (UN / ADR)	UN 1993C 3 / PGIII
Water hazard class (WGK, DE)	3
Risk statements (R)	10
Safety statements (S)	16

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

105875-75-0

MDL number

MFCD00239355

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Allyloxy-tert-butyldimethylsilane used for?

Allyloxy-tert-butyldimethylsilane (CAS: 105875-75-0) is primarily used as a versatile building block and intermediate in organic synthesis, particularly for introducing protected hydroxyl groups.

What is the CAS number and formula for Allyloxy-tert-butyldimethylsilane?

The CAS number is 105875-75-0 and the linear formula is H₂C=CHCH₂OSi(CH₃)₂C(CH₃)₃.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Allyloxy-tert-butyldimethylsilane with an assay of 98%. We do not represent this product as USP, BP, or EP grade.

How should Allyloxy-tert-butyldimethylsilane be handled safely?

Allyloxy-tert-butyldimethylsilane is a flammable liquid (H226) requiring handling with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, away from ignition sources.