Diphenyl guanidine

Basic Info:

  • Chemical Synonym(s): 1N,3N-diphenylguanidine; usafb-19; VANAX DPG; DFG; Guanidine, N,N‘-diphenyl-; Expand
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  • CAS Number: 102-06-7
  • Chemical Formula:


  • MSDS: Download


Boiling Point
338.5ºC at 760 mmHg
Melting Point
Flash Point
Water Solubility
slightly soluble
Vapor Pressure
1.7E-05mmHg at 25°C
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Our company began its operation on organic solvents in 2014, and there are currently five megaton scale plants collaborating, located in Yangzhou, Shandong, Ningxia Chemical Parks in Jiangsu, China. Annual sales exceed 10 000 tonnes per year. From 2014 to present, we have provided 28 solvents for foreign users of more than 60 +.
We have been intensely ploughing the Chinese solvent Market and are very familiar with the products that all the solvent plants in China are good at, while being well aware of the environmental and safety policies in the areas where the plants are located. We can accurately predict changes in solvent prices through changes in oil prices, which can inform customers 6-12 months in advance to be ready for transfer.

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.


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Diphenyl guanidine is a competitive inhibitor of the enzyme acetylcholinesterase (AChE). Diphenyl guanidine or DG is a chemical compound that has two benzene rings and two amino groups.

It is used in organic synthesis and pharmaceuticals. Diphenyl guanidine is a reactive intermediate in some organic synthesis reactions. This white crystalline solid is soluble in organic solvents.

It dissolves in non-polar solvents such as benzene but not polar solvents like water. It is produced by reacting phenol with formaldehyde followed by cyclization with an acid catalyst.

The compound is classified as an imine or organic compound with a carbonyl group bonded to two primary amine groups. It plays an important role in the synthesis of Diphenylguanidine terephthalate (DPG-T).


Diphenyl guanidine is used as a reagent in some organic reactions, e.g., converting ketones to diazo compounds, which are useful in producing dyes, rubber accelerators, and so on.

It is also used as a reagent in the synthesis of some heterocyclic compounds. It is used as an insecticide against aphids, cutworms, mites, leafminers, fungus gnats, thrips, and whitefly.

It is also used as a herbicide against broadleaf weeds. It is also used as a disinfectant for grain elevators. It is widely used in the manufacture of polyurethane resins, epoxy resins, and pharmaceuticals.

It is mainly an intermediate for the synthesis of other drugs. It has also been used as an anti-fungal agent.

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