Basic Info:

  • Chemical Synonym(s): 2-((4-amino-2-nitrophenyl)amino)-ethano;2-(4-amino-2-nitroanilino)-ethano;3-Nitro-4-(2-hydroxyethylamino)aniline;BIS-1-N-(2-HYDROXYETHYLAMINO)-2-NITRO-4-AMINO BENZENE;2-[(2-Nitro-4Aminophenyl)Amine]Ethanol(HcRed3);ETHANOL,2-(4-AMINO-2-NITROANILINO)-;nci-c54922;n-(2-hydroxyethyl)-2-nitro-p-phenylenediamine
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  • CAS Number: 2871-01-4
  • Chemical Formula:


  • MSDS: Download


Melting point
Boiling point
334.29°C (rough estimate)
1.3145 (rough estimate)
Refractive index
1.7400 (estimate)
Water Solubility
<0.01 g/100 mL at 18 ºC
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At present, China mainly develops raw materials for new coatings, and titanium dioxide has occupied about 70% of the global supply chain. Our pigment business mainly focuses on environmental protection and high activity

We have a 20+ year track record of working with suppliers in China and rating reports on them, and we keep our suppliers updated with the latest news so our customers can get the latest supplier reports. We know the market well and have early warning notifications on upstream raw material prices to help you build a stable supply chain.

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We have a number of international freight companies with whom we have long-standing cooperation, and we can choose several route options according to the customer's requirements. For more difficult or urgent orders, we will prepare several alternative solutions to ensure safe and timely delivery.


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HC RED 3 is a mixture of three organic compounds - hydroxyl-2-propenal, N-methyl-2-pyrrolidone, and toluene. It is used as an intermediate chemical in the production of dyes like Solvent Blue 36.

The process by which it is produced involves the oxidation of p-cresol to its corresponding acid, followed by oxidation reactions to produce hydroxyhydroquinone (OH) and 4-chlorohydroxybenzaldehyde (CHB).

It is soluble in water, very soluble in alcohol, and only slightly soluble in chloroform. It was developed using the technology of the well established Inga Inhibitor RED. It is a high quality, low VOC, water-soluble product. RED3 is the only chemically synthesized, ready to use, all-purpose Reducing Agent for coating applications.


HC Red 3 is a very common pigment in the industry of paints, inks and dyes. This pigment is a non-toxic, water-soluble, and highly stable azo dye. It is a red dye used in biological research and as a stain for cell-membrane stains.

It has a particular application in the paint and coatings industries. The pigment is used as a dye for polymers and high-performance adhesives, a pigment for plastics, paper, inks, textiles, cosmetics and toiletries, and as a colour for ceramic glazes. It is also an organic dye that absorbs light in the infrared region.

It can use it in various coating applications to reduce application costs and improve coating performance. RED 3 is a very versatile product. It can use it in solvent or waterborne coating systems. It can use it to reduce the level of azo, peroxide and other reducible pigments and the level of polymers such as polyurethane or polyacrylate.

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