Triethyl orthobenzoate
Triethyl orthobenzoate (CAS: 1663-61-2; Formula: C6H5C(OC2H5)3; Molar Mass: 224.30) is an organic ortho ester. It functions as a versatile building block in organic synthesis. This compound is primarily utilised in chemical synthesis pathways, particularly for introducing the benzoyl group or in acetal/ketal formation reactions. Its applications span various research and industrial chemical processes.

Organic Synthesis Reagent
Triethyl orthobenzoate serves as a valuable reagent in organic synthesis. It is employed for the preparation of acetals and ketals, acting as a protecting group or facilitating further transformations.
Building Block
As an organic building block, this compound is instrumental in constructing more complex molecular architectures. It can be used in reactions requiring the introduction of specific functional groups or carbon frameworks.
Chemical Synthesis
This ortho ester finds application in various chemical synthesis routes. Its reactivity allows for participation in esterification, transesterification, and other condensation reactions within research and development settings.
| Molecular weight | 224.30 |
|---|---|
| Linear formula | C6H5C(OC2H5)3 |
| Assay | ≥95.0% (GC) |
| Boiling point | 239-241 °C(lit.)80 °C/0.1 mmHg(lit.) |
| Density | 0.991 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.472(lit.)n20/D 1.472 |

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 | 97 °C / 206.6 °F |
| Water hazard class (WGK, DE) | 3 |
| 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 Triethyl orthobenzoate used for?
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Triethyl orthobenzoate is used as a reagent in organic synthesis, particularly for the preparation of acetals and ketals, and as a building block in chemical synthesis.
What is the CAS number and formula for Triethyl orthobenzoate?
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The CAS number for Triethyl orthobenzoate is 1663-61-2, and its linear formula is C6H5C(OC2H5)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triethyl orthobenzoate with an assay of ≥95.0% (GC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the main safety hazards associated with Triethyl orthobenzoate?
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Triethyl orthobenzoate is classified with GHS07 and carries the signal word 'Warning'. Hazard statements include H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be used.
How is Triethyl orthobenzoate packed, shipped, and exported?
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Tech Serve Solutions professionally packs, ships, and exports chemicals globally, adhering to all relevant regulations for safe and compliant transport.
How can I request a sample or quote for Triethyl orthobenzoate?
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To request a sample or quote for Triethyl orthobenzoate, please contact our sales team through the website or call us directly.
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