(Trimethylsilyl)acetic acid
(Trimethylsilyl)acetic acid (CAS 2345-38-2) is a versatile organosilicon compound with the linear formula (CH3)3SiCH2CO2H and a molecular weight of 132.23 g/mol. This carboxylic acid derivative serves as a valuable building block in organic synthesis. It is commonly employed in the preparation of more complex molecules, particularly in research and development settings within the pharmaceutical and chemical industries.

Organic Synthesis Intermediate
(Trimethylsilyl)acetic acid is utilised as a synthon in the construction of carbon frameworks. Its silyl group can be strategically employed for protection or directing subsequent reactions, making it a useful component in multi-step synthetic routes.
Pharmaceutical Research
This compound finds application in the discovery and development of new drug candidates. It can be incorporated into molecular structures being screened for biological activity, contributing to the diversity of chemical libraries.
Material Science
The unique properties conferred by the trimethylsilyl group allow for its use in the development of novel materials. It may be involved in the synthesis of polymers or functionalised surfaces where organosilicon characteristics are desired.
| Molecular weight | 132.23 |
|---|---|
| Linear formula | (CH3)3SiCH2CO2H |
| Assay | ≥99.0% (T) |
| Grade | purum |
| Melting point | 39-42 °C(lit.)39-42 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 95 °C / 203 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 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 (Trimethylsilyl)acetic acid used for?
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(Trimethylsilyl)acetic acid is primarily used as a building block in organic synthesis and in pharmaceutical research for the preparation of complex molecules.
What is the CAS number and formula for (Trimethylsilyl)acetic acid?
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The CAS number is 2345-38-2 and the linear formula is (CH3)3SiCH2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (Trimethylsilyl)acetic acid in 'purum' grade with an assay of ≥99.0% (T). We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
How should (Trimethylsilyl)acetic acid be handled?
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Handle (Trimethylsilyl)acetic acid with appropriate personal protective equipment including a dust mask type N95 (US), eyeshields, and gloves. It is classified as causing skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Ensure adequate ventilation.
Is (Trimethylsilyl)acetic acid a controlled substance?
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Based on the provided data, (Trimethylsilyl)acetic acid is not indicated as a controlled substance.
How are your chemicals packed, shipped, and exported?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, ensuring secure and compliant packaging for all shipments worldwide.
How can I request a quote or sample for (Trimethylsilyl)acetic acid?
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Please contact our sales team via the website or directly to request a quote or a sample of (Trimethylsilyl)acetic acid.
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