(Isopropenyloxy)trimethylsilane
(Isopropenyloxy)trimethylsilane (CAS 1833-53-0), with the linear formula CH3C(=CH2)OSi(CH3)3 and a molecular weight of 130.26 g/mol, is a versatile organic building block. This enol ether, characterised by its reactive siloxy group, serves as a valuable intermediate in organic synthesis, particularly for the introduction of protected enol functionalities. It is supplied by TSS with an assay of ≥85%.
- IUPAC
- 2-(Trimethylsiloxy)propene,Acetone enol trimethylsilyl ether,IPOTMS
- Synonyms
- 2-(Trimethylsiloxy)propeneAcetone enol trimethylsilyl etherIPOTMS

Organic Synthesis Intermediate
Serves as a key reagent in organic synthesis, enabling the formation of complex molecules by acting as a protected enol equivalent.
Enol Ether Chemistry
Utilised in reactions requiring enol ether functionalities, offering a stable yet reactive intermediate for various chemical transformations.
Building Block for Complex Molecules
A useful component in the construction of more intricate chemical structures in research and development settings.
| Molecular weight | 130.26 |
|---|---|
| Linear formula | CH3C(=CH2)OSi(CH3)3 |
| Assay | ≥85% |
| Density | 0.78 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.395(lit.) |
| Storage temperature | −20°C |
| Impurities tested | 10-15% hexamethyldisiloxane |


Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -7 °C / 19.4 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is (Isopropenyloxy)trimethylsilane used for?
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(Isopropenyloxy)trimethylsilane (CAS 1833-53-0) is primarily used as a versatile intermediate in organic synthesis, particularly for introducing protected enol functionalities into molecules.
What is the CAS number and formula for (Isopropenyloxy)trimethylsilane?
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The CAS number is 1833-53-0 and the linear formula is CH3C(=CH2)OSi(CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (Isopropenyloxy)trimethylsilane with an assay of ≥85%, containing 10-15% hexamethyldisiloxane as an impurity. It is not represented as USP, BP, or EP grade.
What are the primary safety concerns when handling (Isopropenyloxy)trimethylsilane?
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(Isopropenyloxy)trimethylsilane is a highly flammable liquid and vapour (H225) and causes skin (H315), serious eye (H319), and respiratory tract irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area.
How is (Isopropenyloxy)trimethylsilane packed, shipped, and exported?
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(Isopropenyloxy)trimethylsilane is packed and shipped according to its hazard classification (UN 1993 BF 3 / PG II) and international regulations for flammable liquids. TSS is an experienced global exporter.
How can I request a sample or quote for (Isopropenyloxy)trimethylsilane?
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To request a sample or quote for (Isopropenyloxy)trimethylsilane, please contact our sales team through the website or by phone.
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