Ethyl o-tolylacetate
Ethyl o-tolylacetate (CAS 40291-39-2) is an organic ester with the molecular formula C10H12O2 and a molecular weight of 178.23 g/mol. This compound serves as a valuable building block in chemical synthesis. Its primary documented application involves its use in the preparation of β-o-tolylethyl alcohol via Bouveault's method, demonstrating its utility in organic transformations.

Organic Synthesis Intermediate
Ethyl o-tolylacetate is employed as a key intermediate in various organic synthesis pathways. Its ester functionality and aromatic ring allow for diverse chemical modifications.
Preparation of β-o-tolylethyl alcohol
This compound has been specifically utilized in the preparation of β-o-tolylethyl alcohol using Bouveault's reduction method. This highlights its role in alcohol synthesis.
Building Block in Chemical Research
As a functionalised aromatic ester, Ethyl o-tolylacetate is a useful building block for academic and industrial research chemists exploring new molecules and reactions.
| Molecular weight | 178.23 |
|---|---|
| Linear formula | CH3C6H4CH2CO2C2H5 |
| Assay | 98% |
| Boiling point | 76-77 °C/3 mmHg(lit.) |
| Density | 0.999 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.501(lit.) |
| Application | Ethyl o-tolylacetate has been used in preparation of β-o-tolylethyl alcohol by Bouveault′s method1. |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 107 °C / 224.6 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 Ethyl o-tolylacetate used for?
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Ethyl o-tolylacetate is primarily used as an intermediate in organic synthesis, notably in the preparation of β-o-tolylethyl alcohol via Bouveault's method.
What is the CAS number and chemical formula for Ethyl o-tolylacetate?
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The CAS number is 40291-39-2 and the linear chemical formula is CH3C6H4CH2CO2C2H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl o-tolylacetate with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should Ethyl o-tolylacetate be handled safely?
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Ethyl o-tolylacetate is a Warning substance classified with H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection. Ensure adequate ventilation and avoid breathing vapours.
Is Ethyl o-tolylacetate a controlled substance?
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Based on the provided data, Ethyl o-tolylacetate (CAS 40291-39-2) is not listed as a controlled substance.
How can I request a quote or sample for Ethyl o-tolylacetate?
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To request a quote or sample for Ethyl o-tolylacetate, please contact our sales department via the website or direct telephone line.
Does TSS export Ethyl o-tolylacetate?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Ethyl o-tolylacetate.
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