n-Propyl Acetate
CH₃COOC₃H₇ · CAS 109-60-4
Electronic grade n-propyl acetate for photoresist formulation requiring controlled evaporation during spin-coating. Boiling point (101.6 °C) between EtOAc and BuOAc enables fine-tuned film formation.
Molecular Weight
102.13 g/mol
Boiling Point
101.6 °C
Density
0.886 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 | AR |
|---|---|---|---|---|
| Assay (GC) | GC-FID | % | ≥99.99 | ≥99.5 |
| Water Content (KF) | Karl Fischer | ppm | ≤30 | ≤500 |
| Acidity (as HAc) | Titration | ppm | ≤2 | ≤5 |
| Residue on Evaporation | Gravimetric | ppm | ≤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 n-Propyl Acetate Is Used
Semiconductor Process
- Photoresist formulation (medium-evaporation rate)
- negative-tone photoresist spin-coating
- organic interlayer dielectric (ILD) coating
Laboratory & Analytical
- Extraction solvent
- ink formulation research
- resin dissolution
Industrial & Other
- Printing inks (flexographic, gravure)
- wood coatings & varnishes
- food flavoring
Packaging & Supply
Available Container Formats
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