CAS 123-86-4 is n-butyl acetate, an organic ester solvent used mainly to dissolve, dilute, and control the application of coatings, inks, adhesives, and related formulations. I also see it used in industrial cleaning and selected chemical-processing applications where a moderately fast-evaporating solvent is required. Its practical value comes from its solvent strength, compatibility with many resin systems, and evaporation behavior, although its flammability and workplace exposure requirements must be managed carefully.
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For B2B buyers, the right grade depends on the formulation, required purity, moisture tolerance, packaging, transport regulations, and production scale. I recommend confirming the target application and reviewing the supplier’s specification and safety documentation before placing a commercial order. Yuking can support buyers by discussing product grade, documentation, packaging, and supply arrangements for CAS 123-86-4.
CAS 123-86-4 identifies n-butyl acetate, also called butyl ethanoate or butyl ethanoate ester. It is a colorless liquid with a characteristic fruity odor and is commonly handled as a flammable organic solvent. Its molecular formula is C6H12O2, and its molecular weight is approximately 116.16 g/mol.
In industrial formulations, n-butyl acetate is valued less as a reactive ingredient than as a processing aid and carrier solvent. It can help dissolve or reduce the viscosity of selected resins, polymers, pigments, and other formulation components. The final suitability depends on resin chemistry, solids content, drying conditions, equipment, and the performance requirements of the finished product.
The most common role of n-butyl acetate is as a solvent in paints, coatings, varnishes, and lacquers. I use the term “solvent” here because the material helps create a workable liquid formulation by dissolving or carrying compatible resin systems and other ingredients. It can also contribute to flow, leveling, and film formation when the overall solvent blend is properly balanced.
Manufacturers may use n-butyl acetate to adjust application viscosity for spraying, rolling, dipping, or other coating methods. Its normal boiling point is approximately 126°C, so it generally evaporates more slowly than highly volatile solvents but faster than many high-boiling co-solvents. This intermediate evaporation profile can support coating flow, although the exact drying result depends on temperature, humidity, airflow, film thickness, and the rest of the formulation.
In printing inks and adhesive formulations, n-butyl acetate can act as a carrier for resins, additives, and colorants. It may help a product reach the viscosity required for production and application. I recommend conducting compatibility and drying trials because a solvent that performs well in one resin system may not provide the same result in another.
n-Butyl acetate is widely considered for solventborne coatings, including industrial paints, metal coatings, furniture finishes, and wood lacquers. It can help dissolve resin components and provide a controlled drying rate during application. Formulators normally evaluate gloss, leveling, adhesion, drying time, and resistance properties together rather than selecting the solvent by boiling point alone.
Automotive refinishing and industrial transportation coatings may use n-butyl acetate as part of a solvent blend. Its role can include viscosity adjustment and support for smooth film formation. The correct blend must be selected according to the coating technology, application equipment, local volatile organic compound requirements, and the required finish.
n-Butyl acetate may be used in selected gravure, flexographic, and other solventborne printing ink systems. It can help dissolve compatible binders and maintain application viscosity. Ink manufacturers should confirm print speed, substrate, drying capacity, odor requirements, and packaging compatibility before approving a formulation.
Some solventborne adhesives and sealants use n-butyl acetate as a formulation solvent or co-solvent. It may support resin dissolution and processing consistency, but the final adhesive performance depends on polymer type, solids level, substrate, and curing or drying conditions. A laboratory drawdown, bond test, or pilot production check is advisable before scale-up.
Because it can dissolve selected organic residues, n-butyl acetate may be considered for cleaning applications involving compatible coatings, resins, or process materials. It is not a universal cleaner, and the substrate must be checked for swelling, softening, discoloration, or other damage. Users should also verify ventilation, ignition-control, waste-handling, and worker-protection requirements.
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Buyers may encounter n-butyl acetate offered in different commercial grades, including general industrial grades and higher-purity options. The correct choice depends on impurity limits, water content, color, acidity, nonvolatile residue, and the sensitivity of the final application. I do not recommend selecting a grade solely by the CAS number because the CAS number identifies the substance, not every quality parameter or production specification.
| Buyer requirement | Why it matters | What to confirm |
|---|---|---|
| General solvent use | Supports routine coating, ink, or cleaning operations | Assay, appearance, water, acidity, and nonvolatile matter |
| Sensitive formulation | Small impurity differences may affect odor, color, or drying | Detailed specification, batch consistency, and sample evaluation |
| Large-volume production | Supply continuity can influence manufacturing schedules | Available packaging, lead time, storage conditions, and logistics |
When I evaluate CAS 123-86-4 for a customer, I focus first on the certificate of analysis and the buyer’s application requirements. Common review points include assay, water content, acidity, color, density, distillation range, and nonvolatile residue. The specific acceptance limits should be agreed between buyer and supplier rather than assumed from a generic market description.
Safety is a central procurement issue because n-butyl acetate is flammable. Its flash point is commonly reported at approximately 22°C, with the exact value depending on the test method and specification, so storage and handling should follow the applicable safety data sheet and local regulations. Facilities generally need suitable ventilation, ignition-source control, grounded equipment, compatible containers, and trained personnel.
Packaging selection also affects product quality and logistics. Common commercial formats may include drums, IBCs, or bulk delivery, but availability varies by region and order volume. I advise buyers to confirm container compatibility, sealing, labeling, transport classification, storage temperature, shelf-life guidance, and unloading procedures before shipment.
The first question is not simply, “Do I need CAS 123-86-4?” It is, “What performance must the formulation deliver?” A coating producer may prioritize flow and drying balance, while an ink producer may prioritize print speed and substrate compatibility. Defining the application helps the supplier recommend a relevant specification instead of offering an unnecessarily broad or unsuitable grade.
I recommend testing n-butyl acetate with the actual resin, pigments, additives, and other solvents used in production. Important observations may include clarity, viscosity stability, precipitation, drying behavior, film appearance, and odor. Small-scale testing is especially important when changing suppliers, moving between grades, or modifying the solvent blend.
Unit price is only one part of the purchasing decision. Buyers should also compare packaging loss, freight, hazardous-goods requirements, storage costs, documentation quality, minimum order quantity, and delivery reliability. A slightly different price may be less important than consistent batches and practical support when the material is critical to production.
As a supplier of CAS 123-86-4, Yuking can discuss application requirements before quotation and help buyers identify the information needed for technical review. Our support can include product specification alignment, sample coordination where available, packaging discussion, shipping planning, and commercial documentation. We use a practical B2B approach: first clarify the application, then match the requested quality and delivery conditions.
Buyers should provide the expected monthly or annual volume, destination country, preferred packaging, target specification, intended application, and required delivery schedule. This information allows a supplier to prepare a more useful quotation and identify potential logistics constraints. Where a customer has a new formulation, sharing the key performance target can also make technical communication more efficient.
CAS 123-86-4, or n-butyl acetate, is primarily used as a solvent and co-solvent in solventborne paints, industrial coatings, wood finishes, printing inks, adhesives, sealants, and selected cleaning processes. It helps dissolve compatible materials, adjust viscosity, and establish an appropriate evaporation profile for application and film formation. However, it should not be treated as a universal replacement solvent because performance depends on the complete formulation and operating conditions.
My recommended next step is to define the application, required specification, packaging, destination, and expected volume, then request a supplier quotation supported by relevant technical and safety documents. Contact Yuking with these details to discuss CAS 123-86-4 supply options and determine whether the proposed grade is suitable for your production process.
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