Basic Info:

  • Chemical Synonym(s): Benzene-1,3-diamine; meta-Phenylenediamine (MPD); m-Phenylenediamine; 1,3-Benzenediamine;
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  • CAS Number: 108-45-2
  • Chemical Formula:


  • MSDS: Download


Boiling Point
Melting Point
Flash Point
Refractive Index
8 (100g/l, H2O, 20℃)
5.11, 2.50(at 20℃)
Yellow to light tan or brown gray
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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.

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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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M-PHENYLENE DIAMINE is an organic compound that belongs to the family of chemical compounds called diamines,  known as (PPD) and is also known as monoamino benzene 1,3-diaminobenzene, naphthylamine, or pheylene (IUPAC name) is a chemical compound that has been used for over 100 years.

It is derived from benzidine and ammonia.

It is a diamine, meaning that it has two amino groups (-NH2) bonded to a central carbon atom.. it is a colorless solid.

This compound is soluble in water and alcohol. It has been used as a pharmaceutical intermediate and as a building block for synthesizing other compounds, such as the drug Riluzole.


M-phenylenediamine has many industrial applications, and It is used for manufacturing, textile dyeing, and corrosion inhibitor activity. M-phenylenediamine is also used in the production of polyamide 6, which is an industrial polyamide.

Polyamide 6 is used to produce automotive lubricants, anti-freeze, plasticizers, textiles, and many other industrial products.

M-phenylenediamine is also used in the production of industrial polyamide 6. Polyamide 6 is used to produce automotive lubricants, anti-freeze, plasticizers, textiles, and many other industrial products.

M-phenylenediamine is also used in the production of the industrial monomers 1,4-butanediol, 1,2-propanediol, and 2,2-dimethyl-1,3-propanediol. These are used in the production of industrial polymers.

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