Skip to content
Product Line: Catalysts & Auxiliaries

Azobis(isobutyronitrile)

CAS 78-67-1

Molecular structure of Azobis(isobutyronitrile)

CAS · 78-67-1

01

Product Overview

Azobis(isobutyronitrile) is a high-purity catalysts-auxiliary-agent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

02

Product Specifications

Appearance: White crystalline
Assay: 99% min
Color point: 5 pieces/gram max
Melting point: 100℃ ~ 103℃
Ethanol insoluble matter: 0.01% max
Volatiles: 0.1% max
Hue: 90 min
Batch detection rate: 5%
03

Applications

1. Polymerization Initiator

AIBN is extensively used to initiate free-radical polymerizations of monomers such as:

● Styrene

● Acrylonitrile

● Vinyl acetate

● Methyl methacrylate (MMA)

It is especially useful in producing plastics, rubbers, and resins due to its clean decomposition and ability to generate radicals under mild conditions.

2. Organic Synthesis

In organic chemistry, AIBN is employed in:

● Radical addition reactions

● Chain transfer reactions

● Hydrogen atom abstraction reactions

Its role is crucial in processes like thiol-ene and azide-alkyne click chemistry.

3. Foaming Agent

Upon decomposition, AIBN generates nitrogen gas, making it useful as a blowing agent for producing porous structures in plastics and rubber.

4. Laboratory and Industrial Research

AIBN is widely used in R&D labs and industrial-scale synthesis for designing novel polymers, drug delivery vehicles, and radical-based materials.

04

Benefits

✅ Efficient Radical Generator

Azobis(isobutyronitrile)丨CAS 78-67-1 decomposes cleanly to generate carbon-centered radicals and nitrogen gas, making it a predictable and reliable initiator.

✅ Controlled Decomposition

With a decomposition temperature around 65–75 °C, it offers precise control over reaction initiation, which is essential in polymer and fine chemical synthesis.

✅ High Purity and Compatibility

It is compatible with a wide range of solvents and monomers, and is available in high purity grades for both lab and industrial use.

✅ Versatile Usage

AIBN is suited for both batch and continuous polymerization processes, making it a cornerstone in the manufacturing of synthetic polymers.

Previous

Sodium Triacetoxyborohydride丨CAS 56553-60-7

Next

Tetraethylammonium Hydroxide丨CAS 77-98-5

05

Conclusion

A concise summary and suitability assessment for this product is available on request. Contact our team to discuss whether it fits your process and quality requirements.