Why 2-sec-butyl Phenol (OSBP) Matters in Industrial Chemistry
Ortho-sec-butyl phenol is one of those quiet performers in industrial chemistry that supports several important processes without drawing attention. Also known as 2-sec-butyl phenol, it is registered under CAS 89-72-5 and is widely recognised for its consistency, purity, and performance across multiple industrial uses. Because of its structure and behaviour, it delivers value wherever controlled reactivity and stable performance are needed.
Below is a clear and simple look at what this compound is, why it matters, and how industries benefit from its use.
What Makes Ortho-sec-butyl Phenol Useful
- High Purity and ReliableBehaviour
At its core, 2-sec-butyl phenol is a colourless to yellow liquid with a minimum purity of 99 percent. This consistent purity ensures that the compound behaves predictably in large-scale industrial systems. Since many chemical processes rely on precise reactions, this high purity helps in producing stable and clean outputs.
- Strong Base for Industrial Synthesis
A standout property of ortho-sec-butyl phenol is its value as a base material for advanced chemical synthesis. It is an important intermediate used to make several downstream chemicals that go into industrial products.
This is the reason it appears so often in technical formulations where efficiency and long-term performance matter.
OSBP Properties and Applications
The OSBP properties and applications are the biggest reasons it continues to have a strong demand in industrial chemistry. Here are the characteristics that guide where and how it is used:
Versatile building block
Ortho-sec-butyl phenol supports the production of nitro sec butyl phenol, a compound used in sectors like agrochemicals and the polystyrene industry. Its structure allows it to react cleanly, which makes it suitable for use in controlled synthesis steps.
Role in solvent dyes
A major use of 2-sec-butyl phenol is in creating liquid solvent dyes. These dyes are used for fuel marking in industries that require clear identification. OSBP helps improve solubility and stability, which keeps the colour even and consistent in different fuels.
Contribution to epoxy resin manufacturing
One of the most important OSBP properties and applications is its role in making epoxy resins. These resins support coatings, adhesives and electrical parts. The presence of OSBP helps improve durability and product strength, especially where long-term stability is needed.
Where OSBP Is Commonly Used
Below are the core industries that rely on CAS 89-72-5 for their production requirements. Only the industries that your client serves have been included.
- Polystyrene
The polystyrene industry uses 2-sec-butyl phenol in stabilising styrene monomer. Since polystyrene is widely used in packaging, appliances and consumer goods, this stabilisation ensures the quality and consistency of the final product.
- Epoxy Coatings and Adhesives
OSBP is valuable in the production of epoxy resins, which play a central role in OSBP in coatings and lubricants and other protective applications. Epoxy coatings depend on precise chemical inputs, and OSBP helps maintain strength and bonding quality over time.
- Liquid Solvent Dyes
Several industries use liquid solvent dyes to mark fuels. Ortho-sec-butyl phenol is a key raw material in producing these dyes. It improves dye performance, clarity and stability in different fuel types.
- Lubricant-related chemistry
While OSBP is not added directly to lubricants, its intermediates play a role in broader lubricant formulations. This connects to the larger use of OSBP in coatings and lubricants, where durability and oxidative stability are important.
Why OSBP Remains Important
The reason 2-sec-butyl phenol stays relevant in industrial chemistry is simple. It delivers:
- High purity
- Clean reactivity
- Strong performance in downstream synthesis
- Stable behaviour across temperatures
- Clear benefits in dyes, coatings and resin systems
Its registration as CAS 89-72-5 makes it easy to identify and integrate into global chemical supply systems, which also supports consistent quality across industries.
A Reliable Chemical Input for Modern Industry
2-sec-butyl phenol may seem like a small part of a bigger formulation, but its impact is significant. Its consistency and versatility support many high-performance materials used across industries.
At Vinati Organics, we take pride in producing OSBP with the reliability that modern industries expect. Our teams follow rigorous testing, controlled manufacturing, and careful packing standards so that every batch supports stable processing and repeatable product performance. We also offer flexible packing options and technical assistance to help customers choose the most suitable fit for their operations.
If your business needs a high-quality grade of OSBP backed by dependable service, we are here to support you with consistency, clarity, and long-term value.
Reach out to us to source high-purity Ortho-sec-butyl phenol for your specialised applications.





