CAS 109-94-4: Ethyl Formate (C3H6O2)

Identity

CAS Number109-94-4
Molecular FormulaC3H6O2
IUPAC Nameethyl formate
Molecular Weight74.08 g/mol
SMILESCCOC=O
Synonymsethyl methanoate, formic acid ethyl ester, ethyl formate

2D Structure

Physical Properties

Density0.917 g/mL at 25°C
Boiling Point54.0°C
Melting Point-80.0°C
Flash Point-20.0°C
Vapor Pressure26.0 kPa at 20°C
Refractive IndexnD = 1.36
Dielectric Constantε = 8.0

Safety & GHS Classification

FlammableIrritant

Storage: Store in cool, well-ventilated area. Extremely flammable — keep away from all ignition sources. Ground/bond containers. Use explosion-proof refrigeration if stored below flash point.

Material Compatibility Matrix

Plastics

MaterialRating
PTFEExcellent
PVCFair
PEGood
PPGood
PEEKExcellent
PVDFGood

Rubbers

MaterialRating
VitonGood
NBRGood
EPDMExcellent
SiliconeGood
FKMGood

Metals

MaterialRating
Stainless 316Excellent
AluminumExcellent
CopperExcellent
BrassExcellent

Applications

External References: PubChem

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