Ethyl Acetate (EtOAc)
CH₃COOC₂H₅ · CAS 141-78-6
Electronic grade ethyl acetate for photoresist formulation and semiconductor organic coating. HPLC and pharma grades for TLC, preparative chromatography, pharmaceutical API extraction, and peptide synthesis.
Molecular Weight
88.11 g/mol
Boiling Point
77.1 °C
Density
0.902 g/mL
Molecular Formula
Available Grades
Analytical Specification
Analytical Specification Table
All values represent maximum allowable limits unless noted ≥. A lot-specific Certificate of Analysis (CoA) with ICP-MS, LPC, and GC data is issued for every shipment. Full data packages available on request.
| Parameter | Test Method | Unit | G4 | HPLC | AR |
|---|---|---|---|---|---|
| Assay (GC) | GC-FID | % | ≥99.99 | ≥99.8 | ≥99.5 |
| Water Content (KF) | Karl Fischer | ppm | ≤20 | ≤50 | ≤500 |
| Acidity (as HAc) | Titration | ppm | ≤2 | ≤5 | ≤5 |
| Ethanol | GC-FID | ppm | ≤50 | ≤200 | ≤500 |
| Residue on Evaporation | Gravimetric | ppm | ≤2 | ≤2 | ≤5 |
★ G5 = SEMI C1 Tier D (6N grade). All metal values by ICP-MS. Particle counts by in-line LPC during ISO Class 3 fill. CoA available on request.
Grade Comparison
G1 → G5 Purity Scale
Select the grade that matches your process node and contamination budget. Every grade is available from PureTech with full lot CoA and ICP-MS data.
All grades tested by ICP-MS (28 elements), in-line LPC (ISO Class 3 fill), and Karl Fischer titration. G5 = SEMI C1 Tier D. Full CoA per lot. Request CoA template →
Application Areas
Where Ethyl Acetate Is Used
Semiconductor Process
- Photoresist formulation co-solvent
- organic dielectric coating process
- thin-film display buffer layer solvent
Laboratory & Analytical
- TLC & column chromatography (normal phase)
- pharmaceutical API extraction
- Fmoc peptide coupling solvent
- flash chromatography
Industrial & Other
- Artificial fruit flavoring
- nail polish formulation
- printing inks
- adhesives & sealants
Packaging & Supply
Available Container Formats
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Our application engineers respond with full CoA data, ICP-MS reports, and supply chain details within one business day.