2,2′-Azobis(2-methylpropionitrile) CAS# 78-67-1


2,2'-Azobis(2-methylpropionitrile) CAS# 78-67-1

2,2'-Azobis(2-methylpropionitrile)  , Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name: 2,2′-Azobis(2-methylpropionitrile) 

CAS No.: 78-67-1

Molecular Formula C8H12N4

Average mass21

Appearance:Crystals from EtOH

Sample: Available

2,2'-Azobis(2-methylpropionitrile) CAS# 78-67-1

Description of 2,2'-Azobis(2-methylpropionitrile)

it is an organic compound with the formula [(CH3)2C(CN)]2N2. This white powder is soluble in alcohols and common organic solvents but is insoluble in water. It is often used as a foamer in plastics and rubber and as a radical initiator.

Basic Info of 2,2'-Azobis(2-methylpropionitrile)

Chemical Name






Molecular Formula


Molecular Weight






Safety Info

HS Code


WGK Germany


Caution Statement

P210; P261; P281; P301 + P310; P331

Signal Word



GHS02, GHS07, GHS08

Hazard Declaration

H225; H304; H315; H336; H361d; H373




Boiling Point

236.2ºC at 760 mmHg

Melting Point

102-104 °C (dec.)(lit.)

Flash Point


Refractive Index


Numbering system
MDL numberMFCD00013808
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What is 2,2'-Azobis(2-methylpropionitrile)?

With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Ambroxan which has developed particularly rapidly in recent years. Do you know about Ambroxan?

The official answer: Azo diisobutyronitrile, abbreviated as AIBN, with chemical formula C8H12N4, is soluble in organic solvents such as methanol, ethanol, ethyl ether, acetone, petroleum ether and aniline.

It decomposes with heat to release nitrogen gas and organic cyanide containing -(CH2)2-C-CN group. Decompose slowly at room temperature, decompose sharply at 100℃. Can cause explosion and fire, flammable. Toxic. The release of organic cyanide is more harmful to human body.

What’s the application of 2,2'-Azobis(2-methylpropionitrile)?

It is used as an initiator in the polymerization of vinyl chloride, vinyl acetate, acrylonitrile and other monomers, and also as a foaming agent for rubber and plastics, with a dosage of 10% to 20%.


This product can also be used as vulcanizing agent, pesticide and intermediate of organic synthesis. It is a highly toxic substance, oral LD5017.2~25mg/kg in mice, and the organic cyanide released by thermal decomposition is more toxic to human body.

It is used as a polymerization initiator for polychlorochemicalbook ethylene, polyvinyl alcohol, polystyrene, polyacrylonitrile and other monomers.

Used as initiator for polymerization of organic synthesis intermediates

Used as initiator of polymerization or co-polymerization of vinyl acetate and acrylate. It can also be used as a foaming agent.

Use as a catalyst in the embedding of methacrylic acid esters in tissues. Initiator for polymers. Rubber, plastic, foaming agent. Polychloroethylene-based plastic initiator.



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United Kingdom Giles
United Kingdom Giles
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Peter has been my partner for many years, we met at the Shanghai CPHI Fair in 2014, for the first time I didn't have much interest in Peter's products because our company had a stable supplier. Although we didn't work together, Peter would often send me important news and interesting trend information about the industry, so we became good friends, even though I didn't place any orders with him during this time, even if it was a sample order. In September 2016, our original supplier was unable to provide us with the quality and delivery guarantees we needed, so I first thought of Peter and his company. Until now, we have maintained a very good personal friendship in addition to a steady business relationship.
India Shikhar
India Shikhar
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In all my years of sourcing from China, I first time to found that working with Sincere Chemical was so good, they helped me with all the production and delivery as well as a lot of technical expertise, which saved me a lot of time. When I first approached Peter for a quotation for Optical Brightener, he made me a detailed quotation with not only prices but also foreign trade details, company profile, company strengths, R&D capabilities, production capacity, packaging methods, raw material control, environmental protection, and much more. This information was a very important reference for me in making purchasing decisions. Sincere Chemical is a trustworthy supplier and I believe our business will grow from strength to strength!
Korea Kim
Korea Kim
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Hi, I'm Kim, I'm Peter's partner and although I don't like him very much (because he never gives me more money for my prices, hahaha) I'm still willing to write him customer feedback. As an international buyer, I have to deal with a lot of things every day and my inbox is often full of development letters. It's a lot of junk and meaningless pleasantries, which I don't like that much, but Peter's emails always give me a better understanding of the product and the industry. I am also very pleased with his work ethic, and I am very happy with his work every time I work with him, not only in providing quotations but also in facilitating all the details of my work so that I can concentrate more on other things, so he is the best supplier for me. Although his prices are not the lowest among all suppliers, his products give me the greatest peace of mind.
USA Franklin
USA Franklin
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Sincere Chemical team visited our USA factory in the year of 2017. We think highly of cooperation with them. We thanked you for the past excellent orders and best product quality. We also talked about some new products for future orders. We will be still in strategic cooperation in the future and help each other.
Canada Kate
Canada Kate
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I just got the product. The quality is awesome. I’m very happy. Hope to place soon a new order in your company. Also wish for our future business.
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Sincere Chemical is a reliable and professional company. Not only on exporting but also their professional team service. Their team gave us so many suggestions for our new project. We are really satisfied with their awesome service and best product quality. Sincere-Chem’s vendor code is 51465768 in our cooperated vendor list system.
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I have visited Sincere Chemical company in the year 2018. Their company can be considered as one of the most professional, customer-focused, and product quality-driven companies that I have worked with in recent years.
Brazil Aline
Brazil Aline
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We are a pharmaceutical products manufacturer in Brazil. I’m happy to cooperate with Sincere Chemical especially cooperate with Peter. Peter is patient and friendly. I’m satisfied with his 24*7 hours service. We are not only cooperators but also best friends with each other.
Mexico Gonzalo
Mexico Gonzalo
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Great service and very supportive. This is my first order and I feel fortunate to be with Peter and his company. Product received was the right good quality product, so my review is more related with the quality, service and shipment. Thank you for sending. next time I will order again. Good supplier...



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