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Ethyl 3-Ethoxypropionate is a clear, colorless liquid with good solvency for a wide range of resins, making it particularly valuable in coatings, inks, and paints.
Ethyl 3-Ethoxypropionate is favored over many other solvents because of its low odor, good balance between volatility and solvency, and relatively lower toxicity, making it a suitable choice for applications that require safer handling compared to more hazardous solvents.
Ethyl 3-Ethoxypropionate can dissolve a variety of polymers, including acrylics, epoxies, and polyurethanes, which is why it is widely used in high-performance coatings.
CAS Number: 763-69-9
Molecular Formula:C7H14O3
Molecular Weight:146.18
Synonyms: Ethyl 3-ethoxypropionate, 763-69-9, Propanoic acid 3-ethoxy-, ethyl ester, Ethyl-3-ethoxypropionate, Ethyl beta-ethoxypropionate, EC38RSJ79J, DTXSID0027309, NSC-8870, DTXCID907309, 3-EEP, 212-112-9, Ethyl 3-ethoxypropanoate, 3-Ethoxypropionic acid ethyl ester, Ethyl 3-Ethyoxypropionate, Ethoxypropionic acid ethyl ester, NSC 8870, MFCD00051356, PROPIONIC ACID 3-ETHOXY-, ETHYL ESTER, Ethylester kyseliny 3-ethoxypropionove, Ethyl .beta.-ethoxypropionate, EEP Solvent, EINECS 212-112-9, UNII-EC38RSJ79J, BRN 1751976, AI3-03254, Ektapro EEP, Solvent EEP, Ethylester kyseliny 3-ethoxypropionove [Czech], 3-Ethoxy-propionic acid ethyl ester, ethyl ethoxy propionate, Ethyl3-ethoxypropanoate, Ethyl 3 Ethoxy Propionate, EC 212-112-9, SCHEMBL37036, T-Ethyl 3 Ethoxy Propionate, WLN: 2OV2O2, Tri Ethyl 3 Ethoxy Propionate, Tri Ethyl-3-Ethoxy Propionate, SCHEMBL7364262, CHEMBL3561286, Ethyl 3-ethoxypropionate 99%, SCHEMBL10456890, BHXIWUJLHYHGSJ-UHFFFAOYSA-, NSC8870, Ethyl 3-ethoxypropionate ≥99%, 3-ethoxy-propanoic acid ethyl ester, AAA76369, Tox21_200179, Ethyl ester of 3-ethoxypropanoic acid, AKOS000120095, CS-W013312, .beta.-Ethoxypropionic acid ethyl ester, ETHOXY PROPIONIC ACID ETHYL ESTER, NCGC00248553-01, NCGC00257733-01, CAS-763-69-9, EEP, LS-13347, PROPIONIC_
Ethyl 3-Ethoxypropionate is an organic solvent that belongs to the family of propionic acid esters, and it is widely used in industrial and commercial applications because of its excellent solvency properties, moderate evaporation rate, and compatibility with a broad range of resins.
Ethyl 3-Ethoxypropionate is a clear, colorless liquid with a mild odor, and its chemical structure allows it to dissolve many polymers such as acrylics, epoxies, and polyurethanes, which makes it especially valuable in high‑performance coatings, paints, and inks.
Ethyl 3-Ethoxypropionate is often used in automotive and industrial coatings because it enhances film formation, improves flow and leveling, and provides high gloss and durability to the finished product.
Ethyl 3-Ethoxypropionates relatively high boiling point compared to other solvents allows for better control over drying times, reducing issues like surface defects or poor adhesion in coating processes.
Ethyl 3-Ethoxypropionate is also preferred over many traditional solvents due to its lower toxicity, lower odor, and better environmental profile, which makes it easier and safer to handle in workplaces where workers may be exposed to solvent vapors for extended periods. Because of its balance of performance and safety, it is included in numerous formulations for paints, varnishes, and cleaning agents, and it is sometimes blended with other solvents to achieve specific application properties.
Ethyl 3-Ethoxypropionate is an organic compound commonly used as a solvent in industrial applications.
Ethyl 3-Ethoxypropionate is also known by many other names, such as Propanoic acid, 3-ethoxy-, ethyl ester, Ethyl beta-ethoxypropionate, 3-EEP, and Ethyl 3-ethoxypropanoate.
Melting point: -75 °C
Boiling point: 166 °C (literature)
Density: 0.95 g/mL at 25 °C (literature)
Vapor density: 5.03 (vs air)
Vapor pressure: 2.0 hPa at 25 °C
Refractive index: n20/D 1.405 (literature)
Flash point: 126 °F
Storage temperature: Store below +30 °C
Solubility in water: 54.1 g/L at 20 °C (or 1.6 g/100 mL at 20 °C)
Form: Liquid
Color: Clear
InChIKey: BHXIWUJLHYHGSJ-UHFFFAOYSA-N
LogP: 1.47 at 20 °C
Ethyl 3-Ethoxypropionate is particularly valued in industrial applications because it combines high solvency power with a relatively slow evaporation rate, which gives manufacturers greater control over coating processes and allows for improved surface appearance and film integrity.
Its chemical properties enable it to dissolve a wide variety of resin systems, including alkyds, polyesters, and epoxy esters, making it a highly versatile solvent in both solvent‑borne and high‑solid coating formulations.
Ethyl 3-Ethoxypropionate is widely used in automotive refinishing paints, aerospace coatings, and high‑performance industrial coatings, where its ability to enhance flow, gloss, and leveling leads to a superior final appearance and durability.
In addition, its relatively low odor and reduced tendency to irritate the skin or respiratory tract compared to harsher solvents make it more user‑friendly in workplace environments where frequent exposure may occur.
Ethyl 3-Ethoxypropionate is also used in the production of printing inks, cleaning agents, and some specialty chemical formulations due to its favorable balance between volatility and solvency.
Because it is miscible with many organic solvents and compatible with various additives, it is often used in solvent blends to optimize drying time and film quality.
From an environmental and regulatory perspective, this solvent is preferred in certain regions because it is not classified as a highly hazardous air pollutant and offers a safer alternative to some traditional high‑VOC solvents.
Its versatility, combined with its lower toxicity profile, makes it an essential component in modern coating technologies that aim to balance performance, safety, and environmental responsibility.
Ethyl 3-Ethoxypropionate has a relatively high boiling point, moderate evaporation rate, and excellent solubility characteristics, which help improve flow, leveling, and gloss in coating formulations.
Because of these properties, it is often used in automotive paints, industrial coatings, and cleaning solutions.
Ethyl 3-Ethoxypropionate is an ester react with acids to liberate heat along with alcohols and acids.
Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products.
Heat is also generated by the interaction of esters with caustic solutions.
Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
Liquid or mist may irritate th eyes and skin.
May cause headache, nausea and vomiting, central nervous system depression with dizziness, drowsiness and unconsciousness.
Uses Of Ethyl 3-Ethoxypropionate:
Ethyl 3-ethoxypropionate is used in the synthesis of phenols and selective inhibitors of cyclin-dependant kinase 4/6 for novel cancer therapies.
Ethyl 3-Ethoxypropionate is also used as a solvent to prepare polymers.
Further, it is used in paints and coatings.
Ethyl 3-Ethoxypropionate is primarily used as a high‑performance solvent in the coatings industry, where it plays an essential role in automotive paints, aerospace finishes, industrial coatings, and other applications that require smooth film formation, excellent flow, and high‑gloss surfaces.
Its ability to dissolve a wide variety of resins, including acrylics, epoxies, alkyds, and polyurethanes, makes it highly valuable for manufacturers who need a single solvent that is compatible with many different polymer systems.
Because of its relatively high boiling point and moderate evaporation rate, Ethyl 3-Ethoxypropionate is particularly useful in coatings that require a longer open time to allow better leveling and prevent surface defects such as pinholes or blushing.
For this reason, it is commonly included in automotive refinishing products, where achieving a flawless, durable finish is critical.
In addition to paints and coatings, the compound is used in the production of printing inks, where its solvency and controlled drying time improve print quality and color uniformity.
Ethyl 3-Ethoxypropionate is also employed in certain cleaning agents and chemical formulations that require a strong yet relatively safe organic solvent.
Another significant use of Ethyl 3-Ethoxypropionate is in the formulation of solvent blends, as it mixes well with other organic solvents and helps adjust the balance between drying time, flow properties, and compatibility with resins.
Because it is less toxic and has a lower odor than many traditional solvents, it is often chosen for applications where workers may be exposed to vapors for prolonged periods, making it a preferred option in industries focused on improving occupational safety and environmental compliance.
Ethyl 3‑ethoxypropionate is also used extensively in high‑solid and low‑VOC coating formulations, as its favorable solvency and slower evaporation rate help manufacturers meet strict environmental regulations while still achieving excellent coating performance.
Because of these characteristics, it has become a popular choice in regions that have implemented tighter controls on volatile organic compound emissions, particularly in automotive and industrial finishing sectors that demand both compliance and high‑quality results.
In printing and packaging industries, it is utilized in specialty inks where precise control over drying time and ink flow is necessary to produce sharp, vibrant prints on a variety of surfaces.
Its compatibility with numerous resins and additives makes it a flexible option for formulators who need a solvent that performs consistently across different substrates and environmental conditions.
Ethyl 3-Ethoxypropionate is also found in certain cleaning and degreasing agents for industrial use, where its strong solvency allows for the effective removal of oils, greases, and other contaminants from metal or plastic surfaces before painting or further processing.
Its relatively mild odor and lower toxicity compared to harsher solvents improve user safety and comfort in these environments.
Additionally, ethyl 3‑ethoxypropionate can be used in chemical synthesis and as an intermediate in the production of specialty chemicals, due to its stability and ability to participate in esterification or transesterification reactions.
Because of its versatility, it is often incorporated into custom solvent blends, allowing formulators to fine‑tune drying time, solvency power, and film properties to meet specific requirements for various industrial and consumer products.
Ethyl 3-Ethoxypropionates broad compatibility, favorable safety profile, and performance advantages have made ethyl 3‑ethoxypropionate an indispensable solvent in modern coatings, inks, cleaning products, and specialty chemical applications.
Safety Profile Of Ethyl 3-Ethoxypropionate:
Ethyl 3-Ethoxypropionate is considered to have moderate hazards, mainly related to its properties as an organic solvent.
Prolonged or repeated skin contact may lead to dryness, irritation, or dermatitis, especially if the liquid is not removed promptly.
If inhaled in high concentrations, vapors can cause respiratory tract irritation, headaches, dizziness, or nausea, particularly in poorly ventilated areas.
Accidental contact with the eyes can lead to redness, stinging, and temporary discomfort, so protective eyewear is recommended when handling large quantities.
Swallowing the substance may cause abdominal pain, nausea, and vomiting, and in severe cases could lead to central nervous system depression, so ingestion must be avoided.
Because the compound is a flammable liquid, improper storage or use near ignition sources can pose a fire hazard, especially at elevated temperatures.
Long‑term or repeated exposure to high vapor concentrations could potentially affect the liver, kidneys, or nervous system, similar to other solvents, although such effects are unlikely under normal industrial use with proper safety measures.
