Basic Info:

  • Chemical Synonym(s): 3-NITRO-4-[N-(2-ETHOXYL)AMINO]-N,N-DI(2-ETHOXYL)PHENYLAMINE;3-NITRO-4-[N-(2-HYDROXYETHYL)AMINO]-N,N-BIS(2-HYDROXYETHYL)ANILINE;2,2'-((4-((2-hydroxyethyl)amino)-3-nitrophenyl)imino)bisethanol;2,2'-[4-(2-HYDROXYETHYLAMINO)-3-NITROPHENYLIMINO]DIETHANOL;HC BLUE 2;HC BLUE NO 2;JAROCOL BLUE 2;2,2’-((4-((2-hydroxyethyl)amino)-3-nitrophenyl)imino)bis-ethano
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  • CAS Number: 33229-34-4
  • Chemical Formula:


  • MSDS: Download


Melting point
108-111 °C (lit.)
Boiling point
427.73°C (rough estimate)
1.2263 (rough estimate)
Refractive index
1.5600 (estimate)
Storage temp.
Sealed in dry,Room Temperature
water: soluble(lit.)
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We help you source HC BLUE 2 in China

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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.

When selecting suppliers, our procurement specialists will audit the qualification of suppliers, conduct thorough investigations such as field visits and sample testing, and make ratings to ensure the authenticity and legality of supplier information.

We have a long-term stable cooperation with GLP laboratories, encounter customer test results and supplier test results do not match the situation, we will commission a third party to test to ensure the accuracy, authenticity and reliability of the experimental results. In this way, we can effectively control the product quality problems.

We have a long-term cooperative warehouse and can follow up packaging and labeling according to safety regulations and customer requirements. In order to effectively prevent damage to the goods in transit, we have prepared various reinforcement measures and packaging solutions.

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.


We promise to immediately and unconditionally exchange or return the goods if they have quality problems. Our employees who deal with after-sales issues have many years of international work experience and are familiar with various processes in multinational work, so they can communicate and deal with after-sales issues without any obstacles.

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HC Blue 2 is also known as CI Reactive Blue 4, CI 42655, and Bluestone 9. It is an analogue of lysergic acid diethylamide (LSD), and it has similar psychedelic activity. It can also find it in some foods, medicines, and cosmetics.

It is a reactive dye that turns green when it comes into contact with acids or bases. It is usually used in industrial applications because of its ability to change colours depending on the environment's pH level.

It is a byproduct of the reaction between di-isobutylene and ethylene oxide. The reaction produces hydrochloric acid as a waste product, which it can reuse to make HC BLUE 2. it is also a compound formed from HC BLUE and O2.

During its production, heat is applied to the HC BLUE, which reacts with the oxygen in the air to produce HC BLUE 2. The reaction produces heat and carbon dioxide but mostly results in the formation of HC BLUE 2.


HC BLUE 2 is a chemical product that is used in the production of plastics and fibres. It is used to colour glass in the production of ceramic glazes, in the making of inks, and the hulling of rice.

HCL Blue 2 is a synthetic organic compound that has been widely used as a food dye. It is also used as a colourant in pharmaceuticals and cosmetics such as lip gloss and nail polish.

HC Blue 2 is applied as a diazo solution to make diazo papers. Diazo papers are used as a blank for printing as well as for developing blueprints. HC Blue 2 is also used as a raw material for many pharmaceuticals and dyes. It is also used as a raw material for diazo bond paper and diazo photoresists.

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