It is a phenol produced by nitration followed by its reduction with iron. It is also known as , para-aminophenol, 4-Hydroxyaniline or PAP. It consists of a benzene ring with an amino group (-NH2) and a hydroxyl group (-OH) attached to it in the para position. This versatile compound has found its application in various industries and fields, thanks to its unique properties and reactivity.

It is snow white to off white in colour and is moderately soluble in alcohols. Itdeteriorates when exposed to air, moisture or light.

  • Chemical Formula : C6H7NO
  • CAS No : 123-30-8
  • EC No : 204-616-2
  • Purity (Area% by HPLC) : Minimum 99.50%
  • Packaging : 25 kg net wt packaged in a triple layered bag. It is then purged and sealed with Nitrogen. Subsequently it is further packed inside an HDPE Woven bag for enhanced protection.
  • Stability : As against the market norm of 1.5 months, we have a stability of 6 months. This is backed up by a completed study conducted by our organisation.
  • Loss on drying : Maximum 0.50%


It serves as an essential intermediate in the synthesis of various drugs, including paracetamol (acetaminophen). Paracetamol is one of the most widely used pain relievers and fever reducers worldwide. The synthesis of paracetamol involves the acetylation of 4-aminophenol, leading to the formation of the active compound. Therefore, 4-aminophenol plays a crucial role in the pharmaceutical industry by providing the necessary building block for the production of this commonly used drug.

Apart from its pharmaceutical applications, it is used in the manufacturing of APIs. Another key usage is that it is required in the manufacturing ofhair dyes.4-aminophenol imparts colour to the hair.The exact colour obtained will depend on the other ingredients that are used in the preparation and the starting colour of the hair. It can also be used for the production of azo dyes, sulphur dyes, acid dyes, fur dyes and also as an oil additive. It can be used for the production of Sulphur Blue FBG and weak acid dyes such as yellow 5G. It can be used for gold assay as well as determination of copper, iron, magnesium, vanadium, nitrite and cynate, antioxidants.The versatility of 4-aminophenol in hair dye formulations allows for a wide range of shades and colours to be achieved, providing consumers with various options for personal expression and style.

It is also works as a photographic developer(marketed under the name Rodinal) and a chemical intermediate for pharmaceuticals. It acts as a corrosion inhibitor in paints and as anti-corrosion lubricating agent in 2-cycle engine fuels. It also provides a rose like colour to timber.

Furthermore, it has proven to be valuable in the realm of polymer chemistry. It is utilized as a monomer in the production of polymeric materials, such as polyimides and polyamides. These polymers exhibit exceptional thermal stability and mechanical strength, making them suitable for a range of applications. 4-aminophenol's reactivity and ability to form strong chemical bonds contribute to the excellent properties of the resulting polymers. This makes it an essential component in the synthesis of high-performance materials used in industries such as aerospace, electronics, and automotive.

In addition to its industrial applications, 4-aminophenol also finds utility in analytical chemistry. It is often employed as a reagent for the determination of various compounds through colorimetric assays. The compound can undergo specific reactions with target analytes, resulting in the formation of coloured complexes. These colour changes can be measured using spectrophotometry, allowing for the quantification of the analyte of interest. Such analytical methods utilizing 4-aminophenol as a reagent have been applied in fields like environmental monitoring, clinical diagnostics, and food safety.



The product is packed in HDPE woven bags with Net Weight of 25 kg and having an 3-layered inner bag (Polyethylene + Aluminium Foil + Polyester Liner)and sealed with Nitrogen purging and an additional LDPE Liner inside the 3 Layered Inner Bag for added protection.

The product can be packed in Gusseted UN Approved bags / UN Approved HDPE Drums with Net Weight of 25 kg and having an 3-layered inner bag (Polyethylene + Aluminium Foil + Polyester Liner)and sealed with Nitrogen purging (only in bags) and an additional LDPE Liner inside the 3 Layered Inner Bag for added protection.


It is worth noting that 4-aminophenol, like many other chemical compounds, should be handled with caution due to its potential hazards. Direct contact with the compound can cause skin irritation and can be harmful if ingested or inhaled. Proper safety measures and protocols should be followed when working with or handling 4-aminophenol to ensure the well-being of individuals and to minimize any potential risks.

It is a versatile compound with diverse applications in pharmaceuticals, hair dyes, polymer chemistry, and analytical chemistry. Its unique properties and reactivity make it an invaluable component in various industrial processes and scientific research. As we continue to explore the potential of chemical compounds, 4-aminophenol stands as a testament to the ingenuity and utility of such substances in improving our lives and advancing technological innovation.